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I have 96 Buick century, it will start up and idle for 5min or so. Once you put the car in drive it immediately starts to choke out then stalls. I've replaced crank position sensor, mass air, ignition module. All which have fixed a lot of the problems. I had a diagnostics done to which 8 codes came up. The mentioned above where all on the list. Could it be throttle position sensor? All advice says to look at that.

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  • Cars & Trucks Master
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Well if the TPS were faulty you should not be able to rev up the engine hot or cold.
And there should be a code for that sensor if it has failed.
I would want to know what the fuel pressure looks like first. You could have a faulty fuel pump or clogged fuel filter.
What happens if you put it in drive as soon as it starts ? Or reverse ? ?

Posted on Jan 07, 2013

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Posted on Jan 02, 2017

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SOURCE: car runs rough at idle

clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.

Posted on Sep 04, 2008

  • 17 Answers

SOURCE: buick century 1993 stalls while driving

i had the same problem with my 92 exept after mine stalled it wouldnt start for 20 - 30 mins... mine ended up needing a transmission flush for the stalling problem and i tried to drive everyday that helped
hope this helps in some way

Posted on Jun 13, 2009

memerle
  • 1 Answer

SOURCE: 98 Saturn SL2 - Stalling issues

DTC P1635


The 5 volt reference circuit provides a signal voltage to the linear EGR, MAP sensor, and TP sensor. The return line is grounded through the PCM. DTC P1635 detects a short to ground in any of the 3, 5 volt reference circuits or inside the PCM.

Conditions for Setting the DTC

Important
The 5 volt reference is monitored whenever the ignition is ON.


DTC P1635 will set if the 5 volt reference signal is below 3.5 volts or above 5.5 volts. This voltage is monitored internally by the PCM.

Diagnostic Aids
If DTCs P0563, P0108, P1106, P0452, P0453, P1122, or P0122 are set, a short to B+ on the 5 volt reference circuit is probable. If the short exists while attempting to diagnose, PDT communications will be lost and driveability conditions will exist.

Posted on Jun 24, 2009

  • 1 Answer

SOURCE: 96 Buick Century stalls....

I spent endless time on this same problem on my 1992 Wagon. I changed out the computer but no help. It turned out to be the top dead center crank sensor that tells the system when the crank passes TDC. It is a small magnet essentially about the siz of a pencil eraser in the flywheel. it was cracked and occasionally would not "sense" and the car would just quit. troubleshooting was a nightmare because the computer diagnostics on the 1992 are less capable than the 1996 model. Anyway that is a relatively inexpensive fix and easy to know if it worked. Let me know how you solve this.

LT

Posted on Sep 08, 2009

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1 Answer

Just got 96 buick century 3.1 L will start will idle but stalls while driving starts back up goes for few hundred feet stalls again


Have you checked for any codes in the ECM ? Is the engine light on ? Have you done a complete and proper tune up ?

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96 Buick Century stalls....


I spent endless time on this same problem on my 1992 Wagon. I changed out the computer but no help. It turned out to be the top dead center crank sensor that tells the system when the crank passes TDC. It is a small magnet essentially about the siz of a pencil eraser in the flywheel. it was cracked and occasionally would not "sense" and the car would just quit. troubleshooting was a nightmare because the computer diagnostics on the 1992 are less capable than the 1996 model. Anyway that is a relatively inexpensive fix and easy to know if it worked. Let me know how you solve this.

LT

Jul 08, 2009 | 1996 Buick Century

1 Answer

Buick century 1993 stalls while driving After driving for a while the car stalls out. It's dangerous because sometimes I'm on a highway. It starts immediately after that and goes a bit then stalls again....


i had the same problem with my 92 exept after mine stalled it wouldnt start for 20 - 30 mins... mine ended up needing a transmission flush for the stalling problem and i tried to drive everyday that helped
hope this helps in some way

Jun 13, 2009 | 1993 Buick Century

1 Answer

Starts fine, Idles fine, Drives Fine for a while


you might want to chk. the crank sensor and or cam sensor. sounds more to me that it could be fuel problem. chk. fuel pressure. pump could be on its way out. don't be fooled by hearing the pump running as they sound like they are pumping but there not, at least not enought pressure to keep it running. pressure should be around 50 p.s.i.

Jan 06, 2009 | 1990 Buick Century

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