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1991 Buick codes

Tiny
TIM1567
  • MEMBER
  • 1991 BUICK CENTURY
I am getting a code 26 on my 1991 Buick century and I cannot find anything in any book that tells me what to check. I do know that it stands for quad driver. Could it be the map sensor because it dies when I put it in gear it is an automatic trans.
Wednesday, March 22nd, 2006 AT 7:27 PM

1 Reply

Tiny
MVANNESSJR
  • MECHANIC
  • 223 POSTS
CODE 26

Trouble Code 26 indicates that the quad-driver is malfunctioning.

QDM symptoms:

Cooling fan(s) inoperative
Poor driveability due to 100% canister purge.
Coolant light "ON" all the time, "OFF" during bulb check.
EGR inoperative - Code 32.
TCC inoperative
This problem can be caused by:
1) Short to 12 volts on the control circuit by a shorted component.

2) Faulty ECM.
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Wednesday, March 22nd, 2006 AT 9:14 PM

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