Temperature Problem
#1
Posted 28 June 2014 - 05:57 PM
70k on the clock. When I was driving above 50, the temp gage started to go up and down. So stopped checked the engine and the coolant tank was hot but still ok to touch. Nothing out of the ordinary. Turned the engine back on and the needle went back to the middle, started driving at 60 and the temp went up to orange gradually so stopped, kept the engine going, opened it up and the fan was going but as before everything seemed ok. Got home with the temp cage going to the top line and then back a little again, this did seem to relate a little to speed/revs. Tested it by driving with the heater on, temp went up but when I stop quickly it goes back to normal. The fan seems to be coming on at the right time too, below 40 it's not a problem. Can't work out if the temp sensor has gone funny, if the pump isn't working properly (it is turning) or if the radiator has a block... No leaks and the system is overly pressured. Any ideas :/
#2
Posted 28 June 2014 - 08:10 PM
I am not a mechanic so this is a guess, water pump but you write that it is turning, does it sound noisey the pump?.
The Wiki has a few srticles on the Puma heating system.
#3
Posted 28 June 2014 - 08:13 PM
This post has been edited by AndyPuma16: 28 June 2014 - 08:14 PM
#4
Posted 28 June 2014 - 08:29 PM
If you do change the HCV buy the Ford part, false economy buying an alternative on Ebay you will be replacing it.
#5
Posted 29 June 2014 - 07:27 PM
The other possibility is cheap enough: get an ELM 327OBDII interface (get the Mini version) and the Torque App for your Android Mobile (which needs Bluetooth.) This gives a reading of the coolant temperature taken from the ECU rather than the gauge.
#6
Posted 29 June 2014 - 08:55 PM
#7
Posted 29 June 2014 - 09:10 PM
#8
Posted 29 June 2014 - 09:11 PM
#10
Posted 30 June 2014 - 06:31 AM
#11
Posted 30 June 2014 - 07:40 AM
The most common heating failure is the HCV and they should be replaced every 10 years tops as the pipes get brittle and then it can fail in one big mess.
#13
Posted 30 June 2014 - 02:35 PM
#14
Posted 05 July 2014 - 07:31 PM
#15
Posted 10 July 2014 - 10:40 AM
This post has been edited by Greybeard: 11 July 2014 - 09:31 PM
#16
Posted 10 July 2014 - 11:44 AM
#17
Posted 10 July 2014 - 06:40 PM