1997 Chevy Lumina 97 Lumina Fuel Injector problem?

FISHEYE

MEMBER
1997 CHEVROLET LUMINA
6 CYL
FWD
AUTOMATIC
69,000 MILES

I'm having trouble with my Lumina. I can drive it for a lengthy amount of time, such as an hour on the interstate. Then, when I stop it and it sits for about 30 minutes, I will try to start it again and the engine misfires and won't take any fuel when I press the accelerator. Then, I can let it sit for another 30 minutes to an hour, try it again, and it will start up just fine. And once it is running, it doesn't give me any problems.

The service engine light flashes when it misfires and stays on pretty much all the time. Sometimes it goes out, only to come back on again while I'm driving. I took it to Autozone to check the codes and its a cylinder misfire. The possible causes listed are: oxygen sensor defective, ignition misfire, fuel injector problem, vacuum leak, ignition wires or coil, high or low fuel pressure.

So far, I've had the plug wires replaced, the fuel filter replaced, and the ignition coil replaced. None of those were the problem. Any suggestions?

1 Reply

JDL

MECHANIC
16,098 POSTS

Hello, do some of the basic tests. When it refuses to start, have a helper crank it, while you check for spark at the plugs and injector pulse. Use a gage and check fuel pressure.

What was the actual code? A P0300 may be a problem common to all cylinders. If the code points to a particular cylinder, you start testing at that cylinder.