Engine Performance problem
1995 Chevy S-10 6 cyl Two Wheel Drive Manual 201K miles
Hello. O have a 1995 Chevy S-10 V6 4.3L TBI with a Vortec engine (engine block is probably from a 98 S-10). I have been experiencing a rough startup that appears to be getting worse. Usually at startup when the block is cold the choke kicks in and starts the engine at a high rev before smoothing out to a normal idle. Right now when I startup I get a rough startup with pretty rough vibration of the entire truck as if a major misfire was occuring. Then I either pump the break, clutch, or gas pedal to force the truck to choke. The truck will then go to high rec and eventually (~1-2 min.) go back to normal idle. There is a smell of rich fuel after hitting the gas pedal. I have replaced O2 sensor, cat.converter, spark plugs and wires, radiator, temperature sensor, engine coolant sensor and the thermostat. BTW, no lights are on in the dash at all (no check engine light).
1995 Chevy S-10 6 cyl Two Wheel Drive Manual 201K miles
Hello. O have a 1995 Chevy S-10 V6 4.3L TBI with a Vortec engine (engine block is probably from a 98 S-10). I have been experiencing a rough startup that appears to be getting worse. Usually at startup when the block is cold the choke kicks in and starts the engine at a high rev before smoothing out to a normal idle. Right now when I startup I get a rough startup with pretty rough vibration of the entire truck as if a major misfire was occuring. Then I either pump the break, clutch, or gas pedal to force the truck to choke. The truck will then go to high rec and eventually (~1-2 min.) go back to normal idle. There is a smell of rich fuel after hitting the gas pedal. I have replaced O2 sensor, cat.converter, spark plugs and wires, radiator, temperature sensor, engine coolant sensor and the thermostat. BTW, no lights are on in the dash at all (no check engine light).
Apr 1, 2010 at 4:41 AM
