2002 pontiac grand prix gt 3.8L 233k why does it still have rpm issues between 1500-2500 while going up hills?

185

Asked by Aug 21, 2013 at 01:11 PM about the 2002 Pontiac Grand Prix GT Coupe

Question type: Maintenance & Repair

2002 pontiac grand prix gt 3.8L 233k why does it still have rpm issues between 1500-2500 while going
up hills?

5 Answers

63,235

Sounds like you're misfiring under load. Or possibly a transmission slipping. A tune-up (spark plugs & spark plug wires) should have been done at 200,000 miles. Is your service engine soon light on or flashing when this is going on? If so, Advance or Autozone auto parts stores will scan your computer for free. Then post the trouble code(s) here. As a test try putting the transmission in 3rd. Does the problem go away? These transmissions commonly lose 4th gear and torque converter clutch lock up. Especially at high mileage. Mine has 154,000 on it and 4th gear and TCC lock up is gone. HTH. -Jim

185

no service engine light. worse case scenario whats the repair cost for torque converter vs transmission? i would think the torque converter is cheaper than the transmission. another question where would i be able to find out when the tabs have to be on my aunts corolla as the tabs are due the month of september yet the registration says they are not due until 92513 if so does that mean i have to have them on the plates by 9113 or 92513 or does that depend on the state?

63,235

Since there's no check engine light my guess is tranny trouble. Cost for repairs at a reputable shop upwards of $1500.00. I'm not sure I know what "tabs" are. Is it something to do with vehicle inspection? I'm in NJ. Not familiar with that term. HTH. -Jim

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185

not tabs tags is what i meant.

1 out of 1 people think this is helpful.
63,235

Here in NJ vehicle registrations do not expire until midnight on the last day of the renewal month. I'd check with your State's Motor Vehicle Department. All states are different. Your State will have a website and a customer service number so you can find out. Thank you for the "best answer" click too. HTH. -Jim

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