Question about 1988 Chevrolet S-10

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1988 s-10 2.5L starts and idles, but dies with load put on engine

It will start and runs just fine at idle, but when you push on the gas, it chokes out. Any ideas???

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  • Ryan M May 11, 2010

    If your check engine light is on we need to know what codes are showing...

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  • Chevrolet Master
  • 2,007 Answers

Check timing belt/chain. Aim your timing light at the crank. If the mark is jumping around a lot, your belt has slipped a cog, and will need to be replaced. Or it could be the fuel filter, or a weak pump, or a vacuum leak, or idle air control valve.

Posted on Sep 12, 2009

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Posted on Jan 02, 2017

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When running with the choke on, it is on the high idle circuit of the carb, as it warms up the idle should slow down and then idle in the 800 rpm range in Park, 650 in Drive. This will be the low idle circuit range. This transition inside the carb will cover an idle air bleed hole in the venturi of the carb and lean out the mixture. If you notice that the carb smells gassy and black rich unburnt gases are coming from the tailpipe, the problem is located within the carb and requires a carb tech to do a rebuild of the carb. You could try a good carb cleaner like Lucas by putting it into the gas tank, in case you just got a bad tank of gas, but that is just a bandaid for a more deeply rooted problem. Get the carb rebuilt?

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Sometimes to start you have to give it a lot of


Hi
This sounds like a cold start system fault, which is a number of things.
  1. Cold start temperature sensor not operating correctly so the cold start system won't work when the engine is cold.
  2. The idle needs to be set to the correct RPM of the engine when warm, if it is idling ok when it is warm then this wont be the problem.
  3. Spark Plugs are worn and need replacing.
Most case's its the cold start system not operating correctly and if you have a good workshop to take it too they should pick this up quite quickly. Hope this helps, let me know how you get on.

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