2002 Chevy Monte Carlo SS 6cyl 100,000 miles

Symptom, loss of horse power (from a stop and going uphill), surge or lunge forward when accelerating (misfire?), rough idle (occasional knock).
Maintenance, regularly change all filters and fluids, recently had the m.a.f cleaned and changed air filter, spark plugs and wires, oil.

There have been times in the past year or so when the car would crank but not start. Especially when the car was hot. Wait a couple minutes and it would start. Also a couple of times the car would shake fairly hard when started, get up to speed and it was fine.

I have had people tell me anything from a clogged catalytic converter to bad fuel injectors or fuel pump.

Scanned the car last week. No codes showed up. Never had a Check Engine Light.

Every once and a while the car will jerk when accelerating. I have a coworker who said his truck started to jerk forward and later would not start at all. Our mechanic said it was the fuel pump. I will see what that does for him.

 

Hopefully it is just a fuel pump, because that honestly what I think is wrong. The problem is definitely fuel related.

 

first check the fuel pressure,(key on engine off) should be around 50 or little more
start the engine if drops a lot,you have leaky injector
pull the vacuum line from fuel regulator,and should go up around 60(that is like your wide open throttle) if it does not go higher than your idle pressure

you have bad fuel regultor,while you have vacuum line off check and see if there is gas in vacuum line or regulator, that is the sign of ruptured diaphragm in regulator and change it