If my door is open when I start my car, there is a gas smell that comes into my car. It used to not smell that way, but now it does. It also smokes a lot. What could be wrong? How do I fix?

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yellow 86 Camaro LG4
Pioneer head unit
Kenwood speakers
Infinity Beta Digital 300 amp
2 Infinity Perfect 12s

 

Does it smell like gasoline?
What color is the smoke?

does the car run any different?

your gonna have to say a little more...



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1989 RS.. Newly installed 350,bored out 30 over, Hypereutectic pistons, double roller cam, double roller timing chain, accel wires, blue streak cap and rotor, rapidfire plugs, chevy caprice 350 chip, 200* fan switch.

 

it might be as simple as changing your o2 sensor..
give us more info though, are you getting any codes?

 

It smells like gas. Its cold out so the smoke is white. I'm not getting any codes. How hard is it to replace the O2 sensor? It doesn't run any different, but for the past month or so my choke doesn't seem to be working. I used to push the accelerator in all the way and when I started my car it would rev up to 1500 rpms right away. Now it won't do that. I have to push down on the accelerator and hold it down for it to rev up.


[This message has been edited by matthew (edited December 14, 2000).]

 

somebody please help!

 

I've noticed the same thing man. I went out and bought a new Bosch O2 sensor, 20 bucks at Discount auto. My exhaust smells more and more like gasoline now and that white smoke is harmless (mine is at least, its just condensation burning off in damp FL). I tried to replace it, but its one BITCH to replace. I couldn't do it, you have minimal space to do it in with stock headers and the stupid PCV system. You'll need a deep 7/8" socket to do it with. I could not do it with a 7/8 wrench, and I used a ton of anti-seeze stuff. I'm taking it to my uncle, who has a lot of pneumatic tools and sockets. Hopefully that will remove it.

Location - Drivers side manifold pipe, right near the 3rd spark plug back(on that side). It has a wire going to it, mine is green.

 

The O2 sensor was probably the easiest thing I have ever replaced on my car, next to gasoline.

I cut the wire on the existing sensor, used a spark plug socket to remove it, then simply spliced the new sensor's wire to the car wire, and screwed the thing in.

You might have to use a crescent wrench or whatever. It is right where Fredless said it is. Might be your problem, but I don't know for sure.

How's your gas mileage?

 

im not quite sure if this is the same thing but i have some weird plug type thing right in my exhaust pipe. i have no idea what it is. it sort of looks like a spark plug or something but im not sure. it is after the header on the driver side and then after the flange. i think its black. teher are no wires going into it or anything. its really weird. if anyone has a clue let me know. otherwise ill try to get under the car to take some pics.

also

the nuts on my exhaust flanges keep coming off and making the exhaust rattle when i downshift... i tried using a lock nut but that didnt work either. anyone know whati could try? We sell this "Loctite" brand thread locker **** but i dont know if it would work. sopmeone also told me about using these sort of "squished" nuts that dont unscrew to easy that could stay on. they are on airplanes or something.

sorry about the long post.

 

The exhaust gas oxygen sensor is mounted here:



There should be a wire on the sensor, and it should be connected to a wire in the engine harness. If not, and you're still running the stock carburetor, you need to get it replaced and working.

LocTite and other anerobic threadlockers do not work well in high heat applications. The best method may be to use self-locking nuts as you are describing, but make sure you don't use the "pellet" or "nylock" type, since the plastic locker will also melt in the hot application. Shakeprrof washers would also be helpful in addition to the self-locking nuts.

 

that isnt the thing i was talking about. its like.. directly in the exhaust pipe, kinda by the drivers feet.. ill get a pic tomorrow, the 18th

 

It has nothing to do with your o2 sensor because your car is in open loop anyway when you start it up cold. It sounds like the automatic choke on your q-jet is having fits. I used have a POS '87 Formula with an LG4, and the choke used to way over-adjust in the morning. Thing would just belch raw fuel vapors out the tail pipes and stink up the joint. Your choke thermostat might be on its way out......

 

i have a manual choke.

 

This is how I eliminated my bad gassy smell. I replaced my spark plug wires (just bought 7mm Autolite wires) and replaced my O2 sensor. I still have a little bit of a rough idle, I guess I need a timing adjustment . I think I'm trying to make this a Caddy and I shouldn't be. Good luck with your problem.