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Cadillac Repair/1991 Sedan Deville
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Question
My 91 Sedan Deville, 4.9 V8, runs but then it bogs down and dies. Especially trying to drive it. Could this be the timing? I replaced the Throttle Positioning Sensor, 04/03/2010. The following trouble codes were displayed.. E31, E52, E55, F48... Any ideas?
Hello,
You need to find out what the error codes mean. The car is 20 years old and I no longer have that information. It would sure be nice if I got paid for plugging this site, but this is the source I use. Http://www.alldata.com Pay the $25 for membership. Scroll the chart. Find your make and model. Download the info.
This is all the factory information you need to diagnose any problem.
Your discription of your problem could be consistent with a plugged catalytic converter.
Good luck!
OK, that does it. I am no longer going to try to help anyone on engine problems. I cannot be expected to have code information on a 20 year old car.
I know, maybe I should just pay out of my pocket to get the information on his car, spend hours researching his problems and fix his car over the web for free.
Many people have enjoyed my assistance, but all it takes is one goof to ruin it all. I am sorry, but from now on due to this guy, I will only answer questions related to insurance, anti-theft systems.
I would thank you for the terrible rating and the insults.
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| Rating(1-10) | Knowledgeability = 1 | Clarity of Response = 1 | Politeness = 10 |
| Comment | If I knew what the error codes meant I would be more inclined to just FIX the problem. Also, I thought this was a free service instead I was told to pay 25.00 and become a member. E31 is a MAP sensor problem, E52 is ECM Memory Reset (i.e. You disconnected the battery recently), E55 (unknown) and F48 falls under catagories of fuel issues. | ||
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Rob Painter
Expertise
Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?
Experience
Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.
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