HAUS

ok first off when the car is warmed up and you go to start it back up it is very hard to start unless you press and hold/pump on the gas pedal when turning the key. if you don't it will just crank till your blue in the face. and when its cold it will start right up. so i guess im having hard warm/hot starts problems.

another thing i have a problem with is when it starts right up or if it takes a minute or so is that the idle stays at around 1500 for about a minute and then slowly goes down to about 800-900 RPM. then if i rev it to 2,000 rpm it will shoot down to about 1400-1500 RPM and stay there for about 5 seconds and then go down to about 1000 RPM and then there for a couple seconds and then down to 8-900 RPM.

and when im driving or its idleling a gray or a white smoke is coming out the tail pipes and usally the ground where the smoke hits, there is a wet spot.

when smelling the smoke it doesnt smell like oil or anything. just smells like normal exhaust fumes.

anyone have any ideas.

1992 Mustang LX 5.0

PRO50SC

The starting problem could be your cts for the ecm. Classic of your warm start problem.

HAUS

bump

HAUS

so your saying it could be the coolant temperature sender??? the thing that sends the temperature of the coolant to the gauge in the car???

PRO50SC

No the one that sends the temp of the coolant to the ecm, not for the gauge.

HAUS

where would i find this on the car?

and thanks for you help so far.

PRO50SC

I beleive it's in the steel coolant lines running down the pass side of the intake towards the front of the motor. It should be a 2 wire plug.

HAUS

ok i think your talking about the ECT. the enginge coolant temerarture sensor.

HAUS

yeah ive been doing reasearch about that ECT sensor and just like you said a bad one will give warm/hot start problems and having to step on the gas just like i have to do so iwill go ahead and replace it. thank you so much for your help.

PRO50SC

Good luck. Let us know how it works out.