1994 Chevy S-10 cold starting problem

DECMIKE

MEMBER
1994 CHEVROLET S-10
4 CYL
2WD
MANUAL
135,000 MILES

Vehicle starts fine on warm days, but not cold days will start but shuts off after a few min starts back up shuts off again spends starter a few times but it starts, and runs good until I turn it off and try 2 start it again after a few hours only in cold temps, replaced fuel pump & filter, egr value, throtle body, m.A.P. Sensor & check engine light not on help me somebody.

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Hi decmike, Welcome to 2carpros and TY for the donation

Lets try this inspect and test the coolant temperature sensor, clean out the idle air control valve and EGR valve to include the PCV valve and the throttle position sensor and get back with some testing results for evaluation

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Tuesday, March 16th, 2010 AT 1:19 PM

DECMIKE

MEMBER
2 POSTS

Hi guys thanks for the feedback, I tried all those things but the truck still hesitates as though its about 2 cut off but it does n't since the weather turn warm, and also some backfire

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Thursday, March 25th, 2010 AT 6:25 PM

RASMATAZ

MECHANIC
75,992 POSTS

Check and test the following:

1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.

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Thursday, March 25th, 2010 AT 6:38 PM