Question about 1990 Chevrolet C1500

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I have a problem with my truck starting, chevy 1990 throttle body type 2 top injectors. It takes several cranks to start if it even starts at all without flooding the engine. _ having this problem before I had replaced the throttlebody, injectors, wires, spark plugs> after that it just kept flooding - taking it to my mechanic he reset the computer. Is this a major computer issue and not a injector issue ?

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I had the same problem with my 1990 chevy 1500 (350) replaced the plugs and wires no luck. I replaced the fuel pressure regulator, still no luck. So i called my mechanic he said it would either be the map sensore or the coolant temp sensor. I didnt figure the coolant temp sensor would cause my truck to flood but it was a 17 dollar part so i gave it a shot, took 10 seconds to switch it out with a 19mil deep socket. Truck fired up and ran like a top no more flooding. =)

Posted on Nov 20, 2011

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I would probaly guess that its the computer ive seen this problem befor in chevy trucks and older model blazers actually ive seen it both ways to where it floods the motor or basically jus quits telling the injectors to quit spraying completely.Hope this helps you out good luck.

Posted on Jun 23, 2009

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1 Answer

1990 chevy 1500. starts, runs, when warm it floods, fuel injectors, how can i keep the choke open


If you have a choke on a 1990 1500 ,something is really wrong.I have never seen a choke on a throttle body.If you don`t have fuel check your fuel pump.

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If you have something blocking air entering the throttle body it could cause the engine to flood. A faulty temp sensor could also be telling the computer to dump extra fuel into the cylinders, but you should have a trouble code for that.
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1 Answer

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2 Answers

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1 Answer

Wont start


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3 Answers

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