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92 Buick Regal GS 3.8L V6 stalls
165,000 miles. My Buick stalls intermittently.
It bagan when I parked it at the store, came back out ten minutes later and it would crank, but not fire. Ten minutes after that it started and ran perfectly. Took it into a mechanic, and naturally he couldn't duplicate the problem or find a code. I started to ask around. I got a a diagnostics "key" from the auto parts store. You plug it in the diag. port when the problem happens, and read the sequence from the flashing service engine light. Trouble code came up 17, and I replaced the ICM. Coils tested good. The problem persists. Now it "tries" to stall on the freeway, stalls in traffic in town, and starts and runs beautifully right after stalling. Moments later it stalls again. Eventually, I believe it'll just stall and die. Then the code will pop up for the shop, huh? I need to find this problem! Any advice?? |
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#2
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"stymied" > wrote in message oups.com... > 165,000 miles. My Buick stalls intermittently. > > It bagan when I parked it at the store, came back out ten minutes later > and it would crank, but not fire. Ten minutes after that it started > and ran perfectly. > > Took it into a mechanic, and naturally he couldn't duplicate the > problem or find a code. I started to ask around. I got a a diagnostics > "key" from the auto parts store. You plug it in the diag. port when > the problem happens, and read the sequence from the flashing service > engine light. Trouble code came up 17, and I replaced the ICM. Coils > tested good. The problem persists. > > Now it "tries" to stall on the freeway, stalls in traffic in town, and > starts and runs beautifully right after stalling. Moments later it > stalls again. Eventually, I believe it'll just stall and die. Then > the code will pop up for the shop, huh? > > I need to find this problem! Any advice?? > Years ago, I drove a 1992 Cutlass Ciera and it would stall just as you say, any time, any where, under any condition. I found that pumping the gas pedal would keep the car moving and alive until the symptom went away and everything returned to normal. I replaced a lot of things, thinking those might be the problem. Eventually it turned out that the ECM was the cause of the stalling. You might want to take it to the dealer if they can offer some kind of bench testing for the ECM. -Bruce |
#3
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"stymied" > writes in article .com> dated 25 Feb 2005 09:27:53 -0800:
>Now it "tries" to stall on the freeway, stalls in traffic in town, and >starts and runs beautifully right after stalling. Moments later it >stalls again. Eventually, I believe it'll just stall and die. Then >the code will pop up for the shop, huh? I have had this kind of behavior caused by distributor problems. First try a new cap & rotor. After that the next likely thing is the distributor itself. -- spud_demon -at- thundermaker.net The above may not (yet) represent the opinions of my employer. |
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Bruce Chang wrote: You might want to take it to the dealer if they can offer > some kind of bench testing for the ECM. > > -Bruce An early 90's GM ECM? The unofficial bench testing tool is a ABD (Appropriate Beating Device). Hit ECM. If symptoms change, its the ECM. Consider the crank sensor as well. If you get it to act up you could monitor RPM with a scan tool. No reading would be a good (not 100%) indication the crank sensor or related wiring is bad. Toyota MDT in MO |
#5
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On 25 Feb 2005 09:27:53 -0800, "stymied" > wrote:
>165,000 miles. My Buick stalls intermittently. > >It bagan when I parked it at the store, came back out ten minutes later >and it would crank, but not fire. Ten minutes after that it started >and ran perfectly. > >Took it into a mechanic, and naturally he couldn't duplicate the >problem or find a code. I started to ask around. I got a a diagnostics >"key" from the auto parts store. You plug it in the diag. port when >the problem happens, and read the sequence from the flashing service >engine light. Trouble code came up 17, and I replaced the ICM. Coils >tested good. The problem persists. > >Now it "tries" to stall on the freeway, stalls in traffic in town, and >starts and runs beautifully right after stalling. Moments later it >stalls again. Eventually, I believe it'll just stall and die. Then >the code will pop up for the shop, huh? > >I need to find this problem! Any advice?? The brains of your distibutorless ignition are in the control module under the coil pack. When these start to fail strange things start happening. Is your dripping any goo out the front on to the radiator hoses underneath? This unit doesn't set a code when it starts getting flakey. I fough a weird problem with my '91 Olds for a long time and it turned out to be this control module. Bought one from AutoZone and had to replace it every six months for the next 2.5 years that I owned the car (lousy autozone parts). Steve B. |
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#7
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stymied wrote:
> > 165,000 miles. My Buick stalls intermittently. > > It bagan when I parked it at the store, came back out ten minutes later > and it would crank, but not fire. Ten minutes after that it started > and ran perfectly. > > Took it into a mechanic, and naturally he couldn't duplicate the > problem or find a code. I started to ask around. I got a a diagnostics > "key" from the auto parts store. You plug it in the diag. port when > the problem happens, and read the sequence from the flashing service > engine light. Trouble code came up 17, and I replaced the ICM. Coils > tested good. The problem persists. > > Now it "tries" to stall on the freeway, stalls in traffic in town, and > starts and runs beautifully right after stalling. Moments later it > stalls again. Eventually, I believe it'll just stall and die. Then > the code will pop up for the shop, huh? > > I need to find this problem! Any advice?? Sounds like the "normal" GM crank position sensor failure. When was the last time you had it changed? |
#8
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how about a 87 Buick v-6 , pull up to a stop light and it
stalls , starts right back up, car has less than 50 th miles and is kept in top shape, it has had this sam problem off and on for about 15 years , There was a big stink about the 38oo engine when it was first out , i gave my numbers to the GM factory and they said my 3800 was fine ???? I was told by someone that there is a sensor near the fuel door and some of the gas changes from winter to summer in Calif could effect this , >?????? I hope that man who diagnosed the water pump noise is still out there , He was right on , it comes and goes and seems to have a mind of its own , , please send any help, |
#9
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"toma" > wrote in message lkaboutautos.com... > how about a 87 Buick v-6 , pull up to a stop light and it > stalls , starts right back up, car has less than 50 th miles > and is kept in top shape, it has had this sam problem off > and on for about 15 years , There was a big stink about the > 38oo engine when it was first out , i gave my numbers to the > GM factory and they said my 3800 was fine ???? I was told by > someone that there is a sensor near the fuel door and some of > the gas changes from winter to summer in Calif could effect > this , >?????? I hope that man who diagnosed the water pump > noise is still out there , He was right on , it comes and > goes and seems to have a mind of its own , , please send > any help, > Hey, Toma. Being a lover of the 3800's, I'm in no way putting them down; however, the '87's had a "cutting off" problem that, AFAIK has never been solved. Heard via grapevine--not from my favorite highly-qualified techs--that some success was finally found by replacing all the sensors on the car. This, I still have doubts about. I think most techs will tell u that '88 was the 1st year of the nearly 'perfect' ones. The '88s ran smoothe (many '85-'87s did not), the trannies held up (many '85-'86s were prone to sudden failure), and the '88s proved almost immune to the 'cutting off problem' so common in the '87 year model. Otherwise, the '87s would still run for 200 thousand+ miles! Wish I could help. Maybe a discussion with an old-timer tech at a Buick dealership who is willing to share knowledge may offer the insight you need........ If (IF) you find a solution, please post AND email me. My curiosity has prevailed since '86 when the '87s came out. I was even hesitant to purchase-for-resale the '87s due to generating unhappy buyers--passed by many seeming nice cars at bargain prices because of that one minor yet major tendency. s |
#10
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