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Erratic Idle Erratic Idle

#1 User is offline   jellison 

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Posted 04 July 2017 - 06:16 AM

Hi all,

the wife Puma (1.7), has started (last few weeks), to have a very odd idle. when stopping at lights or stationary for any period the initial idle will be as normal ~ 1000rpm, but then after 30 second or so it will hesitate and either drop to ~800 or even lower 600 (if the lower of the two the battery light will come on). Feel like running on 3 at this point and sometime dies. Usually now when stopped I just tickle the throttle to keep it where it should be and all is fine. Work totally normally at all other engine speeds.

Have changed the plugs, HT leads and the coil pack. No change.

Any ideas? Alternator?




#2 User is offline   happy-kat 

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Posted 04 July 2017 - 09:10 AM

Could perhaps try cleaning the idle control valve, there's an article in the wiki I think
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#3 User is offline   happy-kat 

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Posted 04 July 2017 - 09:12 AM

You didn't notice any coolant around your spark plugs did you?
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#4 User is offline   jellison 

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Posted 04 July 2017 - 09:29 AM

There was oil as the Rocker cover gasket was leaking (presume never changed in 120k miles (we are second owners from mid 40's and I have never had that changed), so did as per a vid on line, new gasket / good clean and clear gasket sealant on opposite face.

Do you have link to the Idle control valve? I'll try a google.




#5 User is offline   jellison 

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Posted 04 July 2017 - 10:20 AM

Going to take the ICV off and clean, then work through (if not sorted) the MAF with proper MAF cleaner, then if the same Lambda.

#6 User is offline   jellison 

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Posted 04 July 2017 - 10:35 AM

Just found this https://www.projectp...opic.php?t=4336 think will disconnect battery for 30 mins first, then work through above / below if no improvement.

#7 User is offline   happy-kat 

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Posted 04 July 2017 - 11:29 AM

You need to be on desktop mode (not mobile) to see wiki link.
Gasket often leaks after can belt change of it is not reseated properly.
searching is fruitful | I'm a sponge not a mechanic | The Wiki is cool, please do check there if stuck with a Puma problem whilst waiting for a reply | For the Puma fan this read 'The Inside Story Book' is very nice to own link coming soon

#8 User is offline   jellison 

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Posted 04 July 2017 - 12:10 PM

View Posthappy-kat, on 04 July 2017 - 11:29 AM, said:

You need to be on desktop mode (not mobile) to see wiki link.
Gasket often leaks after can belt change of it is not reseated properly.
On pc not mobile (I think that is what you are meaning).

Gasket often leaks after can belt change of it is not reseated properly. Do you mean Cambelt?

Presume a gasket on back of the ICV? will this getting bugger removing and have to get a new one or use instant gasket or make one from https://www.complete...ing-3-0mm-thick (make all my gaskets for racers with this stuff (take time but worth it)).




#9 User is offline   happy-kat 

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Posted 04 July 2017 - 06:31 PM

In desktop mode the wiki is in the top menu along where gallery is, in the engine problems is cleaning the idle control valve. I can't add a link when using my tablet as chrome crashes. Sorry I'm not a mechanic so can't give a response to your gasket question. There is another article in the wiki on erratic idle issues.
searching is fruitful | I'm a sponge not a mechanic | The Wiki is cool, please do check there if stuck with a Puma problem whilst waiting for a reply | For the Puma fan this read 'The Inside Story Book' is very nice to own link coming soon

#10 User is offline   jellison 

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Posted 05 July 2017 - 06:17 AM

So going to work through in this order (it is liveable with and goes as normal 99.5% of the time (just idle of say more than 10-20 seconds then drops to much).

Clean MAF wires (order MAF Spray cleaner (if the small bolts holding top in it can be gotten out easy).

* Should have said, had filter out for a good clean).

Clean ICV.

Pop in a new Lambda (normally when this goes you can tell with really bad drop in MPG - I do not religious check this but if it was consistently creeping below 270 mile on a fill up it might point to that, 1 get 265 - 290 generally - and don't hang about on daily 45-50 mile commute).

Have a race pipe to put on to do away with centre box, just not gotten round to it with a bunch of other cars in the Q before. V.soon, wife will love it!




#11 User is offline   happy-kat 

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Posted 05 July 2017 - 08:45 AM

The lambada if failing leaves a really thick sooty exhaust tail pipe and a oxygen sensor fault on ECU. Can be seen if do diagnostic check.
There is also the crappy little pipe just behind headlight for power steering that ages and compresses. Sorry I'm on tablet again but that pipe is mentioned in wiki article on erratic idle.
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#12 User is offline   jellison 

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Posted 05 July 2017 - 08:57 AM

Sorry to be moron, but is the wiki part of Pumapeople or external as I have not found it with a google.

Found this http://www.fordwiki....%3ASearch&go=Go but not the exact URL. Can someone else drop the link into a reply.




#13 User is offline   happy-kat 

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Posted 05 July 2017 - 02:35 PM

It is internal. When in desktop mode look along the top bar on the left where you see Gallery, Members.
searching is fruitful | I'm a sponge not a mechanic | The Wiki is cool, please do check there if stuck with a Puma problem whilst waiting for a reply | For the Puma fan this read 'The Inside Story Book' is very nice to own link coming soon

#14 User is offline   happy-kat 

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Posted 05 July 2017 - 08:30 PM

http://www.pumapeopl...e_Control_Valve

http://www.pumapeopl...93309&hl=sorted
searching is fruitful | I'm a sponge not a mechanic | The Wiki is cool, please do check there if stuck with a Puma problem whilst waiting for a reply | For the Puma fan this read 'The Inside Story Book' is very nice to own link coming soon

#15 User is offline   jellison 

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Posted 06 July 2017 - 07:16 AM

Thanks happy.

for anyone else so they do not have to go via the wiki.




ICV suggestion =

Clean Idle Air Control Valve (Idle Control Valve) <br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">1.Undo two 8mm bolts holding the IAC on to the engine.<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">2.Disconnect the sensor from the IAC.<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">3.Remove rubber gasket and inspect for damage and corrosion, replacement is advised.<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">4.Spray the inside of the icv with carb cleaner and leave it for about 5 min to dissolve the carbon buildup. repeat this a few times till you are satisfied it is clean.<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">5.Reseat the gasket and reinstall.<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 11.7px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">6.Bolts are set at 9 Nm (6.64 Ib/ft)




Idle Flaring thread =

After months now of pratting around with my Fiesta and spending Hundreds of pounds buying parts for it....not to mention tripping up and down all over the country.. Posted Image<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">FINALLY, i have sourced the root of all evil causing the Idle Flare issue on my fiesta... Posted Image <br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Posted Image<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Check this out on your Puma's too if getting this issue!... it's a little loom connector near the front of the car ( look just under the front bumper ..drivers side) that connects up power steering.. Posted Image <br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">As you can see, the wire has just become brittle and broken off where it meets the connector...it's a little thin and flimsy to say the least.. Posted Image <br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Because of this, iv'e been buying parts for MONTHS which then led to even more probelms as the new Idle Control Valve i bought was actually faulty...Posted Image Ford for some reason couldn't diagnose thsi despite having the car for two days... Richard at Tremona did go over the car much more thoroughly and recognised the ICV problem fairly easily and did a rework of the wiring loom for me to improve signal strength to the Throttle Position Sensor..TPS... all this did improve the running of the car, but still it would only settle on revs when car was at complete standstill...Richard seem to suggest this was normal... but having a previous 1.4 before i couldn't remember that being the case.... Posted Image even so, the car when warmed up would not idle at the nice 940 revs... it would always sit at around 1100..grrr...<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Anyway, i just found out this issue just by a passing glance at a topic on ZSOC forum, a guy described the EXACT same issue, and many owners piped up straight away as this being the problem, and sure enough it was.... if this is such a common issue why do garages not know about it... Posted Image <br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">iv'e done a quick tempory fix using electrical connectors until i can source a new piece of wiring loom...<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">The car now runs sweet as a nut and idles perfectamundo... Posted Image Posted Image Posted Image Posted Image Posted Image Posted Image <br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Happy Lad...<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Chris<br style="color: rgb(28, 40, 55); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, verdana, tahoma, sans-serif; font-size: 13px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(250, 251, 252); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">#453

====================

I'll work through both of those.

Oddly it seems slightly better when stuck in rush hour traffic with the Ac on!




#16 User is offline   jellison 

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Posted 06 July 2017 - 07:17 AM

oops that did not work well!:roflmao:/>

#17 User is offline   X8PAC 

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Posted 06 July 2017 - 01:58 PM

Have a look at this very useful guide to idling problems in the Zetec engine.

http://www.gomog.com...ambda%20Sensor.

#18 User is offline   jellison 

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Posted 06 July 2017 - 02:03 PM

That looks good.

Idle Symptoms and Possible Causes/FixesPoor idle when warmVacuum Leak
Crankcase Breather Valve
Plenum Leaks
Pulse Air Injection
Pulse Air Injection SolenoidPoor idle when coldVacuum Leak
Wrong OilHigh hanging rev (normally when cold)Throttle Body ResonancePoor idle at all timesVacuum Leak
HT Leads
Spark Plugs
Rubber T Piece
Idle Speed Control Valve
Auxiliary Drive Belt pulleys
EGR Valve
Lambda SensorPoor idle at some timesVacuum Leak
EGPD valve
HT Leads
Spark Plugs
Inlet Air Temperature Sensor
EGR Solenoid
Heat Soak
Throttle Body Gasket
Throttle Body Position SensorBad idle and stalling when warmLoose EpromWill work through the ones for Hot and cold over and above those already done, plugs, HT and Coil pack.


#19 User is offline   jellison 

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Posted 13 July 2017 - 06:28 AM

Fixed it.

After replacing the plugs, coil pack, (rocker gasket seal - not to do with idle issue), then yesterday taking the ICV and the MAF off and cleaning (with brake cleaner and MAF cleaner respectively). Start it up, seems to run smoother, but after a minute same bloody idle rev drop. So that had not changed.

Then noticed a brace air tube sticking out from the inlet manifold (below and to the right of the ICV), that seemed to have nothing connected to it (odd). Put my finger over the end (engine running), Ta da, FIXED!!!!!!!!!!!!!!!!!!!!!:cool:/>


** What's this about updating my account to allow 3rd party Hosting of pictures? Can find the bit in My Profile to do this.




This post has been edited by jellison: 13 July 2017 - 06:29 AM


#20 User is offline   happy-kat 

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Posted 13 July 2017 - 09:09 AM

Glad that's fixed.
Sure you aren't reading a photo bucket message.
searching is fruitful | I'm a sponge not a mechanic | The Wiki is cool, please do check there if stuck with a Puma problem whilst waiting for a reply | For the Puma fan this read 'The Inside Story Book' is very nice to own link coming soon

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