Question: I have a 1998 z24 Cavalier 2.4 Twin Cam, when im driving the road after about 20 mins it will stall out an die randomly. No back fire, no fuel smell, nothing. The gauges going crazy an it shuts off. Itll start back up after about an hour, but before it does it just trys turning over. Its not having any issue with loosing horsepower. Can someone please help me.
Answer: It sounds like you have a fuel pressure or no spark problem.
You are going to need to check for spark at the spark plugs when it stalls and does not restart. If there is no spark, you could have an ignition module or crank sensor going bad. If you do have spark, the next thing is to check the fuel pressure.
It is harder to check fuel pressure on older Cavaliers since they do not have a pressure test port. You would need a gauge and adapter hoses. Or at least listen for the fuel pump in the gas tank to hum when it is cranking.
As always, as scan of the computer for trouble codes can also help. Even if the check engine light was never on when the car was running, there may be a code stored.
These older Chevy Cavaliers also had a problem with water getting into the computer and causing problem. It is located inside the passenger side wheel well behind the shield. Unplug the connectors and look for corrosion. Also look for it around the computer housing.
I have a question about my car yesterday I was cleaning the outside of my car at a car wash and got in it and ever since then I started smelling like a WD-40 or like when you spray your house for bugs smell coming from my car I don’t know if that’s possible for the car some how to smell that way or maybe it was like something in the water or soap but I still smell it today not constantly all the time but like a light smell of it every so often.
Answer: Yes, if the water got under the hood it would give off a smell.
Ig the car was running at the time, you may be smelling the exhaust. If the car is running lean, it could do that. Also, if the catalytic converter is starting to go bad, that could be your problem as well.