Classic/Antique Car Repair/1992 Cadillac STS

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Expert: - 4/13/2008


Question
I have a 1992 Cadillac STS..what occurs is it stalls out when im driving. It stalls on highway or regular streets, usually when I give it gas, I also noticied that the gas gage moves from side to side irreguarly sometimes not always. I have done a tune up, and replaced the fuel pressure regulator and ignition control module, i have also ruled out it being the fuel pump. Im assuming it has something to do with the fuel injectors but no codes are coming up..please help..it will be greatly appreciated

Answer
Hi Manuel:
Sounds like you have done all the correct things to fix the problem. You mentioned you tune her up. I am assuming as part of that tune up, you clean the fuel injectors. If not, they are most likely clogged.

However, if they was cleaned, and you are sure it is not the fuel pump, check the fuel filter and fuel lines. There is blockage somewhere in the fuel delivery system that's causing this problem.

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Vern Bullock

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Visit my website at: http://www.classytransportation.com/ I can answer most questions about autos built in the 60's 70's and 80's. Specifically, Lincolns, Rolls Royces and the Excaliburs. Mechanical issues and technical questions are my expertise. I also have a general knowledge of most older automobiles. Keep in mind, I can only provide answers if the questions are very specific and complete. Without details, I can only speculate and that's not good for solving your problem.

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I have owned and maintained Silver Shadows for over 10 years now. I find most mechanics and even Rolls Royce mechanics have very little knowledge about these automobiles. I have researched these cars in quite a bit of detail and can pretty much tell you what is wrong, if you can describe the behavior in detail. I have saved quite a few RR owners a lot of money and aggravation due to improper diagnosis. I am the owner of Classy Transportation, LLC a luxury limousine service specializing in antique cars, classic cars, vintage cars and exotic cars.

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