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1990 Chevy Lumina stalling and high RPMs

Tiny
STEVE78
  • MEMBER
  • 1990 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
I have a 90 Chevy lumina. While driving or even stopping the rpms shoot way up an jerks my car around. Other times as I'm stopping it stalls. I have replaced a number of sensors including the map sensor to no avail. But it does sometimes throw a code for the map sensor. Can u help?
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Thursday, March 25th, 2010 AT 9:36 PM

2 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Check the hose going to the mapp sensor could be crushed, dilapidated etc. Also check idle air control valve and do a throttle body cleaning, if this does not fix your problem you may have a problem with the torque converter/torque converter clutch solenoid.

I own 2 90 Luminas and both have the same Problem when the battery goes dead
I need to take one right now to the dealer to get the computer reset and that will fix the problem
I have learned to change the battery while the car is running and the ALT. With out disconnecting the battery
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Sunday, March 28th, 2010 AT 10:12 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
https://www.2carpros.com/how_to/how_to_tune_up.htm
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Sunday, March 28th, 2010 AT 10:13 PM

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