20 Most Recent 1994 Cadillac DeVille Questions & Answers

Not a very common problem. You can get either the part from the dealer, or the seat from the junk yard. It will have the piece you need to correct the issue.

It doesn't blow cold air is the only way you can tell. A garage with AC skills will hook up gauges and check high side and low side pressures against the parameters set by the maker..

you start by looking at with trunk open the figure out which part needs removed . a repair manual purchase might be in order IF you can still find one that old

Knock sensor is on the right (passenger) end of the engine, and will activate if at least one of the cylinders is misfiring.

These are for 4.9L


P016-generator voltage out of range--Voltage is below 10 volts or above 16 volts with engine at 500rpm.

P030-Idle speed control (ISC) out of range--Check ISC for operation

A047-very low A/C refrigerant condition warning--check refrigerant level

I039-speed sensing suspension (SSS) fault--this one requires a lot of testing. Could be anything from bad connection at a strut, to bad ground, to bad strut.

I041-battery voltage too low--at 800 rpm, voltage is less than 10.6 volts

I052-keep alive memory error--means IPC lost voltage, and reset. Normal if battery was disconnected, or lost voltage.


These codes are for 4.6L


I039-loss of road sensing suspension (RSS) data--might need to replace rss module

P016-generator voltage out of range--same as above.


If you need anything else, let me know.

You can check on line from the different parts stores of visit your neighborhood store. They will probably need to order it. A Cadillac Dealership may have one in stock.

Is there a trunk release button in the glovebox?

Analog or digital gauge ?

What makes you think engine is too hot ?

follow the fat air intake hose from the air cleaner

If you're finding it difficult to service/ repair your car i know a website that has every info on all vehicles and vehicle problems, with their solution In detail.. it's www.reliable-store.com

Sticking throttle plate maybe , clean with carb. cleaner . 2002 Saturn high idle at red light 007 Idle Speed Problems Scan Data for Idle

Might be the neutral safety switch. Is the security ligt blinking? Do It Yourself Diagnosis and Repair

I would take it to the dealer immediately, as it sounds like the traction control is spontaneously being activated

You can check the trouble codes (DTCs) with a code reader and go from there, but unless you have the necessary repair skills, you should leave it to a dealer or reputable repair shop.

Check fuel filter! I’m happy to help further over the phone at https://www.6ya.com/expert/pat_7f6b46a4565f904d

Given the age of the vehicle, it will be difficult to find a service manual, but that's what you need. You can also try Alldatadiy.com.

I039 is a road sensing suspension problem, I042 is battery voltage too high. I would first try to clear the codes and try to figure out why the voltage is too high - often a faulty regulator in the generator. You also seem to have a battery drain problem - something besides the keep-alive circuit is drawing it down. First check all lights (including trunk and under hood) and the rear air compressor when the car is turned off. Road sensing problem could because of the high voltage, but could also be one of the height sensors at each wheel is detached or broken, or the RSS module has given up the ghost.

Although the fault may be in the mirror itself (like a switch), wiring and connector is above the headliner, and that is what you need to check.