20 Most Recent 1999 Chevrolet Lumina - Page 4 Questions & Answers

The problem you describe is almost certainly a bad/stopped-up catalytic converter. Not fuel line, not trunk seals, not head gasket or anything else. The fuel line answer is just wrong. If your catalytic converter is bad or stopped up, you will also almost certainly need to replace the Oxygen sensor as well.

You didn't say it smells like rotten eggs or sulfur, but that is the most commonly-stated description...it isn't accurate; a bad converter smells like a bad converter. Most people find the odor similar to rotten eggs or sulfur. A clogged exhaust system will shut an engine off after a short time due to backpressure and excessive temperature buildup.

Your check engine light should also be on. Read any diagnostic codes the PCM has set. I'm fairly sure your problem is the catalytic converter...

Steve Johnson,
Wrenching GM Cars/Trucks For 40 Years

Could be water in one of the wiring harness connectors.

is your battery dead , it is in park or neutral , just saying just because you lights come on does not mean your battery is good ,enough to start it , do u get a click when key turned

as stated earlier , just because lights come on does not mean batt is good , are you in neutral or park ,could be a bad wire from the starter , state what other prob you are having , here ,

usually bad headlight relay, if that checks out ok then then contacts in headlight switch are bad and switch needs replaced

near blower on the bottom of passenger side of dash its held in by 2 screws n goes straight up in dash

If you just need to change the headlamp bulb, your owners manual has that info. If you don't have an owners manual go to my.gm.com Type in year--make--model, hit go, click on owners manual/guide, click on pdf file. If you want to remove headlamp assembly, let me know and I'll post the procedure. I wasn't sure if you just needed to remove bulb or the whole lamp assembly? Don't touch the new bulb with bare hands/fingers, use gloves.

Turn on the ignition or ten minutes. Off for thirty seconds. Try to start. This is a reset.

the right way.is to drop it from the bottom..not saying you cant..from the bottom i think would be better

if it has resistors they will be in the heater box next to the blower motor. The air flow is used to keep the resistors cool as they can overheat and burn out.

You need to go to an auto parts store that will pull the engine codes for you for free then you will have a better idea of what the problem is any other way is just speculation.

Too old for chip, but use a jig sawblade to catch onto the broken key

Raise the hood. Lift the flap on the appropriate end of the radiator upper air deflector. Separate the radiator side air baffle from the upper air deflector. Remove the fastener retaining the upper edge of the front bumper fascia to the headlamp bracket. Remove the two bolts retaining the headlamp assembly to the headlamp bracket. Slide the headlamp assembly slightly inboard to release the outboard retaining tabs. Carefully pull the upper edge of the front bumper fascia away from the inboard edge of the headlamp assembly enough to aid in headlamp removal. Carefully remove the headlamp assembly from headlamp bracket.

Not sure if this is the question from yesterday but I had similar problems check out this link. it has lots of useful info hope it helps

on top of brake pedal

yes indeed also check vacuum supply to it and fuel filter , and poor gas millage.

The sensor is probably one of the O2 sensors. The odor could be too much fuel or not enough. What is the trouble code stored in the computer ?

The sensor is the oxygen sensor and it has a lifespan based on mileage and that is around 60,000 miles. If they go bad you have the driveability issues that you are talking about. But if the catalytic converter is bad too then it makes it worse.