2001 MGM stalls at idle when cold
#11
I think a faulty coil is going to misbehave warm or cold. An injector on the other hand might. A cylinder misfire is not usually intermittent, is it? As for oil, I am a pro-synthetic but have doubts that the oil''s weight will make it stall. Any viscosity variations due to cold temps will cause a little engine noise upon start-up. That is until the colder, thus thicker oil makes its way thru the engine and back to the pump. Have you plugged in and tried to pull trouble codes? The CEL does not need to be lit for codes to be stored. Keep on posting.
#14
Originally Posted by slymer
in that case, have you checked the wires leading to the coils to make sure none are frayed? also, if you think it may be a coil that giving you problems, try disconnecting one at a time until there''''''''s no difference from normal. then you''''''''ve found the bad one. This is not an approved method (I don''''''''t know if it will hurt anything, but it might). The best way would be to have some place test each coil with a tester - preferably cold, since it seems to work fine once it''''s warmed up a bit.
#16
Oh yeah,No check engine light and the code scanner will not show anything if light is not on.
Does anyone know if you can unplug the coils one at a time while running to determine which cylinder is misfiring?
Thanks
Does anyone know if you can unplug the coils one at a time while running to determine which cylinder is misfiring?
Thanks
#19
Tried new silicone boots and new springs.No luck.Ohmed out the coils and all read about 5 ohms.Don''t know what they should read.
The 2 new coils checked the same so I assume they are all good.
I have replaced IAC valve and yet idle seems to act up on cold start.Will sometimes die if you just start it and let it idle.
Thinking maybe something in the engine management system