Question about Pontiac G5
It dosent jerk during ecceleration or going up hills. it also idles good. i put injecter cleaner in and didn't help. it is a 5 speed.
Posted by Anonymous on
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Posted on Jan 02, 2017
the next thing is to have the fuel preasure checked, not enough preasure will cause this. also you should have the computer scaned for codes, this is very helpful in finding the problem,may have a misfire or weak coil.start with these things and see what happens,a bad coil pack may be what you will find. hope this helps.
Posted on Feb 20, 2010
probably spark plug wires,have a full t-up done with plugs,wires,and all filters that should correct your problem.
Posted on Dec 02, 2010
SOURCE: I Have a 2001 chevy
Have you considered that all you had to do, was replace the EGR Valve,
and make sure you got no ignition misfires or vacuum leaks?
Everything you did was unnecessary, and would not be part
of any diagnostic testing, witch you couldn't have done.
Wishing,Hoping,Pushing and Poking,that procedure brings
in 2.3 Billon Dollars, of unnecessary wasted parts each year!
Posted on Dec 08, 2010
Tips for a great answer:
Here are the common cause of surges, stalls at stops, slow idle speed, erratic idle, it is in most cases the idle speed control air-bypass valve and/or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving
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This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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Throttle Body Cleaning on vehicles without electronic throttle control (most 2003 and down)
You can in most cases repair this slow speed stall or unstable idle by cleaning the engine throttle valve and the idle speed control valve using a product called CRC Spray Throttle valve cleaner. Spray the cleaner into the air intake of the engine with the hose removed from the throttle body, the engine will try to stall so hold up the idle speed manually. Once you have used up about 1/2 can of the cleaner stall the engine out while spraying and turn the key off, disconnect the negative battery cable for 5 minutes and then reconnect and drive the car for a about 25 miles of varied driving modes. If this doesn't cure the problem you may need the fuel injectors professionally cleaned by the dealer service dept.
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