Question about 1999 Chevrolet Tracker
When I come to a stop while idling the engine vibrates and shakes like it is going to cut off and sometimes does. It is quite violent when it's cold but as it warms up and I drive it for a while it gets "somewhat" better but never really goes away. The rest of the driving experience is good. What can I do to resolve the problem?
My Tracker shakes at idle too. It shakes more when its in gear than when its in park. So i asked a friend who worked for GM about the shaking and he also said the EGR valve could be letting off some vacuum, if it had accumulated debris and or was stuck open. I took the intake off with the EGR still mounted to it and cleaned both. The EGR seamed to be internally intact and moving so i kept the EGR and changed the EGR gasket and intake gasket. The injectors were soaked in marvel mystery oil during the process. everything was blown out thoroughly with compressed air and put back together. The shake was about 70 percent gone which was a big improvement for me. I'm guessing chevrolet never would have attempted stacking champagne glasses on the hood of these models and I live with what little shake it does have.
Posted on Nov 04, 2013
You could check to make sure the plug wires are all intact. If they are, try replacing the wires and plugs. It could also be that the idling is set too low. It could be the mapping sensor as well. Also try, Maybe the coil pack is going bad. It will cause the engine to misfire. The can be bought at Auto Zone or Advanced Auto. Some place like that...
Posted on Oct 18, 2008
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Posted on Jan 02, 2017
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