i have checked the wires, distributer cap, rotor, EGR vave, Crank shaft position sensor, elctrical connectors, fuel pump and i still have no clue any ideas? the only thing i can come up with is water in an electrical component but which one. it will not start on rainy days but dry it will.




Coming Terms: Car Does Not Start On Cold Rainy Day,

Dakota Wont Start When Its Foggy,

Car Won T Start Untill I Push On The Gas Pedal,

Car Won T Start Untill I Push On The Gas Pedal,

Why Does My Car Start On Warm Days But Wont Turn Over On Very Cold Days,

and Car Hesitates To Start.

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4 Responses to 97 Gmc Sonoma 4.3 Will Not Start On Rainy Days And Hesitates On Foggy Ones Untill It Heats Up Eng?

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spence

January 27th, 2010 at 1:11 pm

hello, i know you checked your distributer cap but from past experience in this problem it is most likely moisture getting in to your distributer cap try replacing the cap this i think will solve your problem. ps. you do have a hood on the vehicle right? ha ha.

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the bear facts

January 27th, 2010 at 1:11 pm

HA! Take a look at the firewall connector,the water runs right over the top of it when it rains,pull it apart and use a dielectric grease on the contacts put it back together,and install a piece of plastic or rubber over top to shield it from the water,Chev vans had the same problem it took real mechanics to figure it out not Chev engineers.

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cvc7chri

January 27th, 2010 at 1:11 pm

mine did the same mine is 2000 gmc sonoma 2.2L flex fuel
and i changed the fuel pump ($300.00) and it works good now
now i just gotta do a tune up and oil change DAMN!
well yeah
sonomas Rule

Avatar

plan toys

January 27th, 2010 at 1:11 pm

I would try a spray with a high dialectic strength This means the high tension voltage wont break through over all under body electrics.
Wynn’s Viscotene would do the job it is good for about 50,000 volts

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