Smoking catalytic converter???
Thread Starter
Racer
Joined: Jun 2005
Posts: 363
Likes: 0
From: Jacksonville, Fl
Smoking catalytic converter???
I have been trying to research this problem but I am at a loss. Of course I am not the most experienced weekend mech.
When my car runs for a while and gets nice and hot. Smoke will come from the engine compartment. The first couple of times I popped the hood and each time narrowed the source of the smoke to the left catalytic converter.
At stop lights if I have to stay there too long there will be noticeable smoke coming up through the center console and from under the car.
I wanted to see if anybody knows what this is. Is this a sign that the cat converter is clogged? Is there something else wrong with the left side of the engine?
Any comments would be great. 90 L98 with 127k owned for a year. Otherwise runs great no overheating a lot of power and reliable.
Thanks,
When my car runs for a while and gets nice and hot. Smoke will come from the engine compartment. The first couple of times I popped the hood and each time narrowed the source of the smoke to the left catalytic converter.
At stop lights if I have to stay there too long there will be noticeable smoke coming up through the center console and from under the car.
I wanted to see if anybody knows what this is. Is this a sign that the cat converter is clogged? Is there something else wrong with the left side of the engine?
Any comments would be great. 90 L98 with 127k owned for a year. Otherwise runs great no overheating a lot of power and reliable.
Thanks,
Le Mans Master
Joined: Mar 2001
Posts: 7,999
Likes: 14
From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
Hmmm, I wonder if anything changed from 88 to 90. Probably not, you are probably seeing the results of a tiny oil leak. My 88 would do this on really hot days when the oil got thin, it would sneak by the valve cover gasket and drip a drop or two down on the exhaust. It does not take much to make a big cloud of smoke! Check the valve cover gasket area, also the intake manifold is prone to leaks near the back of the engine.
something...oil or coolant leaking .
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
Originally Posted by Phantom90
OK Ill check the back of the engine. If it is leeking is replacing the gaskets my only option? Could I put some ATV sealant back there?
ATV = all terrain vehicle
