99 grandprix gt engine issues
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99 grandprix gt engine issues
i have a few issues. i figured out the majority of them...i have a 99 gp gt 168,000 miles thats moveing sluggishly, when i first start the car up and pull off into the main road it accelerates funny...it spurts power out as if im pressing the gas over and over again. i can see it on my rpm gadge it literally climbs one notch after another in gradual spurts. ive gotten my spark plugs replaced, i have cleaned out my injectors aswell. i am planning on installing new ignition coils and replaceing the fuel filter. WHAT do u think the problem is? i would appreciate the help.
#2
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It sounds like a heavy misfire...i always check by starting the car and pulling the plug wires off 1 at a time to see if the way its running changes at all..and if it starts to run funny on 5 cylinders but has no change on one of them youve found your issue.But be careful because bad spark plug wires can zap ya..also one other test you can do is to make sure your MAF is functioning correctly by unplugging it as your car is running.It may stumble and die if so just restart it and see if it runs better.take it for a test drive if you have to just dont beat on it to much
#3
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If your car is misfiring that badly the check engine light should be on, and probably flashing. Take your car to autozone or someplace like that and they will read your car'* diagnostic trouble codes for free. Post the DTC'* back here and we can help you track down and correct the issue(*).
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My 'service engine soon" light is on but its because of the coolant leak i developed a week ago..and unfortunately in sacramento california our kregens and autozones usually dont read your obd2 codes...infact they try very hard not to come out from behind their counters. but the car has done this since i bought it 4 mounths ago. today i will check the plug wires and maf. SHOULD i go head and check my FPR aswell?
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just checked the fuel pressure reg and got a pretty strong smell when i put my nose to da vacuum line. i also took my oil cap off and noticed some water droplits in it. its been really foggy for the past week or so and pretty cold aswell..is this something i should worry about?
#7
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the fpr is bad if you smell gas. i wouldnt worry about the water at this point, look on the oil dipstick water whitish stuff and in the coolant maybe.
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im gonna order a new fpr this weekend. im also experienceing bad fuel economy. i have a leak in my coolant elbows aswell. will a bad fpr and a coolant leak change my fuel economy.??
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