A flashing check engine light indicates active engine misfire. There should be codes set for these conditions. It could be low fuel pressure, but if you have not replaced the spark plugs and wires, I would look there. Failed ignition coils or ignition module can be culprits. Also plugged exhaust (catalytic converters) could be to blame as well. To test the catalytic converters, remove the oxygen sensors between the engine and converters and go for a drive. You can also unbolt the converters and run open exhaust. It will be loud, but if performance improves and normalizes, your exhaust is plugged and you will need to replace the converters.
SOURCE: 1994 s10 service engine soon light
Have you had the truck scanned for codes? If so, what was the code, codes? Why did you replaced those listed parts. Can you hear any hissing noise coming from the engine or engine compartment?
SOURCE: Acceleration problems
It could be excessive play in the distributor shaft. Or even a collapsing rubber fuel line.
SOURCE: timing belt failure? 1997 chevy s10 2.2L 4 cyl.
hi bob, take off the oil filler cap, have someone crank the engine while you look inside, if the rockers are not moving, it is a broken or slipped belt, if the rockers are moving try a compression test to see if the problem is limited to one cylinder or all of them....does the sound of the engine cranking seem faster than normal? is there any noise (clanking/banging) while cranking? marty good luck let me know!
SOURCE: 1998 Chevrolet 5.7 Vortec Problems.
Most likely the intake gaskets are bad. they will sag in the middle over time and allow a vacuum leak between the head and intake. recommend replacing the gaskets with the steel instead of plastic ones.
SOURCE: 2007 cobalt, check engine light , stays on just
hard to say.
Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
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