Catalytic Problems
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Junior Member
Joined: Jan 2015
Posts: 14
Likes: 3
Car: 1983 Camaro z28
Engine: 5.0L 305
Transmission: 4 speed auto
Catalytic Problems
Hey guys,
For awhile now Iv got white smoke (not because it cold) coming out of the exhaust and Iv ruled out the valve seals and the head gasket. I believe it may be moister built up in the old cat. How do I test for this problem?
1983 Camaro Z28
5.0L 305 V8 OHV
For awhile now Iv got white smoke (not because it cold) coming out of the exhaust and Iv ruled out the valve seals and the head gasket. I believe it may be moister built up in the old cat. How do I test for this problem?
1983 Camaro Z28
5.0L 305 V8 OHV
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Catalytic Problems
Water in the exhaust or cat should boil off and evaporate within 5 minute of being at full temp. If you're still getting white smoke, you're getting water in the fuel/oil which means you have a leak somewhere.
do a cylinder pressure test to see if any funny business is going on in the actual combustion chamber.
do a cylinder pressure test to see if any funny business is going on in the actual combustion chamber.
Thread Starter
Junior Member
Joined: Jan 2015
Posts: 14
Likes: 3
Car: 1983 Camaro z28
Engine: 5.0L 305
Transmission: 4 speed auto
Re: Catalytic Problems
Think I got it solved. I think there's water in the gas tank, there is a hole in the tank and over time I think it's been condensating since the car does sit for long periods of time. Engine has started to sound bogged down like it's starved of fuel as well. It would explain the expensive water out of the exhaust and the white smoke
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