Question about 1988 Chevrolet Silverado 2500

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Flooding The motor revs high and eventually floods. thought it was a vacum leak but have had no sucess

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Try changing the coolant temp sensor if its reading wrong it will cause the engine to flood

Posted on Jul 20, 2009


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no year car, no jeep modle . no engine told. (strike 3?)
is it a ww2 jeep?
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do you have a shop full of tools and know how?
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ill not list them all , have done so many times.

MISFIRE. (Causes) google this words yet?
flooding, causes.
is fuel pressure too high,? you dont know.
are injector leaking, (you dont have the tool to do leak down and balance tests)
got bad spark , and no scan tool to see P0300 codes? p03xx ?
you fail. 1993 to now 1996 , has newer codes.)
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2: bad spark ,scan it yet.? give it a 60k mile tune up this decade?
3: bad fueling, (floods, for many reason)
4: bad fuel>?

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There are a number of possibilities here. Oil that is very old (high mileage) will become hydrocarbon contaminated over time. This can have a gasoline-like smell. There could be a problem with the piston rings allowing fuel the run down the cylinder walls into the crankcase. This can also occur in an engine that has a misfiring cylinder since the fuel is not being burned. Lastly, a leaky fuel injector can be flooding a cylinder, either when running, or after vehicle shutdown and before the fuel pressure bleeds off. This fuel will lay in the cylinder and eventually leaking into the crankcase, contaminating the oil.

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99 mercury sable automatic trans vehicle idles very low randomly even stalls out sometimes high idle occurs as well reaches about 4000 rpm at times. engine light threw 4 codes, all to do with o2 sensors...

Sounds like a broken or torn vacum hose, pcv valve clogged, or bad Idle air control motor. Did you spray carb cleaner on vacum hoses or near the plastic intake., and did the motor rev up or down? Those codes represent a lean condition which means most like a vacum leak or clogged idle air motor. Sometimes the intake manifolds crack or the intake manifold gaskets crack. FInd that vacum leak or inpect iac motor

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a3342: Your code is for map sensor intermittent low voltage.
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