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1989 Pontiac Grand Am 2.3 DOHC overheats when idling in traffic

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1989 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 82,000 MILES
1989 Pontiac Grand Am 2.3 DOHC mileage: 82,000 mi. This car is driving me crazy! It's been on a scope and gives no error codes. Let me fill you in: In below freezing temperatures, the "check engine" light glows. After it runs for a while, it can be restarted without the light glowing. It gets poor mileage, regardless of temperature. It appears the torque converter doesn't lock up at highway speeds. In below freezing weather, the heater has poor heat output. Despite not warming up properly, it will overheat, apparently out the radiator overflow tank when idling in traffic. Help!
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Wednesday, October 20th, 2010 AT 7:56 PM

1 Reply

Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
Check for a blown head gasket. The “check engine” light will “light” when there is a malfunction in the engine management system. The fault code is then stored in the computer. The computer must be scanned to retrieve these stored faults to pinpoint the malfunctioning component. Because the check engine light indicates something is wrong, a trip to you neighborhood automobile service center sooner rather than later is recommended.
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Wednesday, October 20th, 2010 AT 8:02 PM

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