Question about 1999 Chevrolet Blazer
I would check your header gaskets. At first it will smoke a little then increase a lot more as you drive it. Keep an eye on your heat gage. If it increases and the smoke increases, then I'm thinking for sure it has to do with your heads. Do not drive the vehicle, Because it will make matters worse. If its not either of your header gaskets. Check your oil pump inside the oil pan. I had an older model that smoked like a crop duster but still had power and it was the oil pump. There is a way to check. You pull one of your plugs and just crank the motor and if antifreeze spits out then you have a bad header or gasket. I'm not sure what plug do. You should look it up. If its you catalytic converter, Just take it off and punch out the baffles then stick it back on. I did that with mine and there was no change in the noise and ran great without the restriction.
Posted on Mar 25, 2014
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Posted on Jan 02, 2017
SOURCE: engine oil
It is not unusual for an older truck to be burning a little oil. It is burning very little so you will not smell burnt oil or see blue smoke in the exhaust. But the oil burn does add up and you may notice a drop on the oil dipstick after a few weeks. On a 9 year old truck under normal working conditions will burn a little oil. If you are having to add 1 liter between oil changes, that is ok, just shows normal engine ware. 2 Liters is acceptable between oil changes if the truck does a lot of heavy pulling or work. 3 or more liters indecates a problem, but at that rate, you should be able to smell oil and see blue smoke.
Posted on Oct 30, 2008
sounds like it could be electrical then... have you done any changes to the electrical at all? rewiring, changing headlights, etc? I had a similar smell when I changed my headlights... new headlights were defective and were melting the housing and harness...
Posted on Aug 12, 2009
SOURCE: issues with 99 Chevy Blazer LS
check the exhaust manifold possible gasket,check flange gasket or check exhaust system for damage --cat converter smells like rotten eggs or if plugs up stalls vehicle and wont let start-----
Posted on Feb 14, 2010
Common problems for these cars is the valve cover gaskets, intake manifold gaskets and front crank seal. None of which are extremely expensive or hard to change, just time consuming. It would be typical for someone selling the car to steam clean the engine. Check the coolant resevoir for contaminants and level as well as the oil level and condition. Make sure that the oil filter used is an AC Delco. These will give you optimum and correct oil pressure. Not all filters are created equal! If you feel it may be a ring issue, check the exhaust for signs of black carbon build up and signs of cleaning. It is likely that it is an external leak. If you wish you may send me pics of the engine compartment to analyze and I can tell you where to photograph.
Posted on Mar 14, 2010
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SOURCE: engine smoke and smell
You have a bad head gasket. So far the leak is not so bad but will eventually reach the oiling openings in the gasket so watch out for that. Change them as soon as you can
Posted on May 15, 2010
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