1992 Buick Regal Stalls in Gear

GMC
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MARRCHA
  • MEMBER
  • 4 POSTS
My 1992 Buick Regal Custom 3.1 liter with 100K+ miles has recently started stalling while stopped but in gear. The check engine light is [b:69cf7212ad]not [/b:69cf7212ad] on and I'm pretty sure it works because it lights up when I start the car and when it stalls. The stalling seems to happen after making a more sudden stop or after being uphill or downhill although it can happen other times too. Furthermore, when I start up the engine sounds like it's revving itself, and I sometimes hear this while idling at a light as well...this sounds worst right around the time it's about to stall, which is happening about twice a week now. It drives perfectly, the transmission fluid was changed last year, and I had a fuel injection tune up recently with a throttle plate cleaning in an attempt to correct this problem. Any ideas as to what could be wrong? Thank you!
Apr 17, 2006 at 11:00 AM
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KENB79764
  • ✓Experienced Mechanic
  • 52 POSTS
my first suspect would be the egr valve or controllers if electronically controlled. also replace any vacuum hoses which are cracked or dry rotting, especially going to the egr.
Apr 18, 2006 at 1:31 AM

Suggested Repair

Inspect the EGR valve and any electronic EGR controllers. Replace cracked or dry-rotted vacuum hoses, especially those connected to the EGR.

Conversation Summary

The owner of a 1992 Buick Regal Custom 3.1L reports stalling while stopped in gear, often after sudden stops or hills, along with idle revving. The check engine light is not staying on, and a recent fuel-injection tune-up and throttle-plate cleaning did not fix it. The expert first suspects the EGR valve or its electronic controllers and recommends replacing cracked or dry-rotted vacuum hoses, especially those going to the EGR.

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