92 oldsmobile 88 stalling when cold fine when warmed up - Page 14 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-26-2006, 09:30 PM   #131
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Take what you can... Get the PCM and Chip... Among other things

Maybe the MAF as well, Throttle body....

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Old 04-27-2006, 10:00 AM   #132
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Thanks, Don for the good advice.

92olds..., Did you ever get hold of a vacuum gauge so we can compare your vacuum readings at idle with a good running 92?
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Old 04-27-2006, 10:34 PM   #133
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as soon as i get paid from working i will buy one i had one but it dissapeared into my mess so ill have to buy another one. but yeah the parts bonneville should be there by saturday and i can take anything i want off of it including the leather interior so i will get back to you guys
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Old 04-28-2006, 02:30 AM   #134
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Yes indeed. First things first. I'm sure you will wnat to "harvest" what you can while you can from the parts car. That is a good deal, especially if you have an easy way to get rid of what remains when you are done with it.
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Old 04-28-2006, 12:48 PM   #135
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If it has the Delco Type 2 ignition module / coils snag it too... Get everything you think you may be able to use from that car... All of the parts that cross over may help you find your problem...

Get that new Vacume gage too

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Old 04-28-2006, 10:11 PM   #136
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92 bonneville sse i have it right now
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Old 05-07-2006, 04:45 PM   #137
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Still working on it i have absolutely no vaccum leaks i went and ordered all new vaccum line and that junction box looking thing behind the throttle body where all the lines go into and everything is fine there. Now im looking at the fuel system considering that all the plugs looked lean it means the car is either getting too much air or not enough fuel. Im going to buy some new injectors tomarow and see what happens. Think thats a good idea?
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Old 05-07-2006, 06:13 PM   #138
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Quote:
Originally Posted by 92olds88royale
Still working on it i have absolutely no vaccum leaks i went and ordered all new vaccum line and that junction box looking thing behind the throttle body where all the lines go into and everything is fine there. Now im looking at the fuel system considering that all the plugs looked lean it means the car is either getting too much air or not enough fuel. Im going to buy some new injectors tomarow and see what happens. Think thats a good idea?
I really can't advise you to spend that kind of money when you are not sure that it will solve the problem.

You may think you have no vacuum leaks that you can locate externally, but that doesn't mean you don't have a gasket that has failed somehwere on the intake manifold that is causing the problem.

It would be more cost effective to attach a vacuum gauge to the intake manifold and report what the gauge reads at idle and with the oil cap off. We can then compare that to a similar engine in good running condition. If the values are the same, then we can eliminate vacuum leaks as the cause of your problem, and begin to look at other components and systems.

One injector will cost you a whole lot more than a vacuum gauge. And you should be able to buy one almost anywhere, even at a Wal Mart.

BTW, "getting too much air" is just what we would expect from a vacuum leak.

Just trying to save you money and frustration here.
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Old 05-07-2006, 07:21 PM   #139
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OK, I went out and hooked up my old vacuum gauge to my '95 SLE to show you how easy it is to do the test.

1. Remove engine cover

2. Pull vacuum hose off of fitting on intake manifold that supplies vacuum to the HVAC reservoir. It is not necessary to plug the hose end.

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3. Start engine. Let warm up a bit. Here is the bigger picture:

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4. Read the gauge. Mine was just into the green "normal" range. A bit above 18. I think if my engine were in better shape, this reading might be higher. But the gauge was steady indicating that I did not have a bad valve somewhere. Notice the crankcase is closed (oil filler cap on).

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5. Remove the oil filler cap and read the gauge again. The gauge reading in this picture seems to be a little lower, but it'* just that the angle is not identical. There was no change in the reading with the cap off or on. I am pretty sure that is how it is supposed to be.

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Now, just do the same with yours and let us know the results.
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Old 05-07-2006, 08:54 PM   #140
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okay bill i will let you know on my findings
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