Question about 1991 Chevrolet S-10 Blazer

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Will not Idle

My 1991 Chevrolet S-10 Blazer will not idle. Have changed fuel filter and dist. cap, also rotor, and spark plugs. Fuel pump is working. Any suggestions?

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  • 92 Answers

Ok so you did a full tune up. ok well, the throttle positions sensor (tps) may not be good. or the gas needs some cleaning use some tune up in a bottle trust me it works great.

Posted on Dec 19, 2008

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Find the pressure test port (looks like a tire valve) on the fuel distribution rail over the injectors and place a can over the open end of the valve. Press the inner pin to release fuel into the can. If the pressure seems to fall rapidly, replace the fuel filter. Is the check engine light on? Rent a scanner, read any code(s), and pursue to repair(s). A bad crankshaft sensor or camshaft sensor can prevent the injectors from firing fuel into the engine.

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I would change the filter and replace it with a high performance one. You can google the make and model for an online manual.

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Will not idle.


hey
your oxygen sensor is probably bad

Jun 17, 2008 | 1991 Chevrolet S-10 Blazer

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