Question about Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: high idle and misfire cylinder 1
This could have several causes however the most likely cause is either a throttle positioning sensor or the mass air flow sensor is bad. To check either of them you need to have an OBDII scanner that can read voltage. It would be best to send it to your local GM tech to have them do an onboard diagnostic rather than spend alot on parts that may not solve the problem.
Posted on May 21, 2009
It's possible he has two plug wires crossed, or pulled a spak plug wire apart replace #2 spark plug wire First. To test check the firing order and make sure all the wires on the right plugs and the correct place on the distributor, if it is right, then buy a can of carburator cleaner and spray around the intake gasket if the engine revs up when you spray the carb cleaner around the intake manifold with (engine running) if the engine rpm revs up you have an intake leak.
Posted on Jul 03, 2009
You can clean the area really good with degreaser and apply JB Weld but that is only a temporary fix it will leak again
Posted on Oct 04, 2009
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