1986 4X4 S10 2.8

Asked by Oct 01, 2007 at 08:07 PM about the 1986 Chevrolet S-10

Question type: Maintenance & Repair

IT IS TO RICH ON FUEL.DOES ANYONE NO WHAT MIGHT BE CASUEING THIS PROBLEM. THEN IT DON'T WANT TO TAKE TE GAS AT FIRST. THEN IT WILL BACK FIRE WHEN YOU LET OFF GAS. CAN ANYONE HELP. THANK YOU DEBS10

2 Answers

43,945

Sounds like either a bad sensor, like an 02 sensor, or perhaps a throttle position sensor, or malfunctioning fuel injector. If it is carbureted, you may need a carb rebuild.

OK THANKS, WE HAVE REPLACED ALL THE SENORS IT HAS.PUT NEW FUEL PUMP NEW COMP. NEW TIMEING CHAIN AN GEARS. GOT INJECTORS OUT OF ANOTHER THROTTLE BODY.IT WILL IDLE FOR FIRST 2 MINUTES THEN STARTS RACEING UP AN DOWN. LIKE IT RUNS LOW ON GAS. THEN WHEN IT DOES IT STINKS.DONE WORKED ON CONVERTOR. THEN BLACK SMOKE COMES OUT OF TAIL PIPES.

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