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What causes a '73 Nova to emit white-grey smoke from exhaust when starting and revving engine?
Wiki User
∙ 8y ago
the valve guides could be worn out
The carburetor is running fuel rich and needs adjustment. If it were valve guides or rings the smoke would be blue
Wiki User
∙ 8y ago
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What causes gas fumes in Saturn 2001 L-Series?
Is it gas fumes or exhaust? The only cause for a fuel smell inside the vehicle would be a fuel leak, so check the lines, tank, etc. for that. While you're underneath, check the exhaust. Sometimes exhaust can have a similar odor to fuel, so check for exhaust leaks under the vehicle and also check your rear door seals and trunk seals for damage or poor seal. Sometimes exhaust can be sucked in through poor seals. If you are unwilling or unable to get under the vehicle to check for exhaust and/or fuel leaks, take the vehicle to a shop and explain your concerns and ask that it be inspected. Breathing either fuel vapors or exhaust can have serious health and safety risks, so be proactive, do something about it before bad things happen.
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What causes blue smoke from exhaust?
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