Top 20 1992 Cadillac DeVille - Page 3 Questions & Answers

blow into one end of the check valve and if air passes through then the end at your mouth will go to the distributor.

Bad wheel bearings.

There are between 6 and 10 plugs. They are on the sides of the engine block, look under the exhaust manifolds. They are round plugs 1-1 1/2 " dia .. that are driven into the engine. Their purpose is to pop out in case the engine coolant freezes to keep the block from cracking.. They also allow the sand from sand casting to be removed from the engine block casting. during manufacture.. Replacing them can be easy if its one you can see and eaisly get at.. Can also be impossible without removing many parts and in some cases removing the engine from the car. Good luck. Go to an auto parts store (NAPA is a good one) And look at or purchase a plug so you know what you are looking for.

You can usually find it on the Internet, or ask the question on justanswer.com.http://justanswer.com/

ok if you can insert a key get a philips screw driver put it through the latch and turn the key while at the same time pull down on the screw driver and i should open then try closing it again

There is a sensor that sometimes has to be reset once you install the new brakes. Find it and reset it, (it should just push in).

Not in less than 25 words, but for your reading pleasure - here you go...There is no "idle screw" on your model mercedes. It is a fuel injected (in other words, not an older normal aspirator type carbuertor), computer controlled idle/air mixture. There is an idle/air speed control valve part (see picture ) that connects to the idle/air control unit (another programmable computer - one of about 20 in this model) that determines idle speed and air/fuel mixture. Mercedes is top of the line, but really too complicated for the average joe to work on. Best to pay the man and take to a mercedes specialist shop.

Could be several things Check tires for air pressure and wearing on the sides Alinement could be off. Tie rods and ball joints could be worn. Wheel bearings could be shot.

idle speed controller which sits under driver side dash (RHD)

First let's define some terminology. The job of the starter motor is to "crank" the engine, if it does this, weather the engine runs is going to depend on the fuel system and the ignition system and good compression. Try this: with one hand, hold the key it the "crank" position, with your other hand, move the gear shift (slowly)from park to reverse to neutral to drive. Make sure you foot is on the brake as it may start in gear. If it starts while doing this, you have a bad neutral safety switch. Also, It wont stay running when you crank it by jumping the starter if the ignition switch is off. Try doing it again with the key on. If it starts with the key on, and you jumping it at the starter, you probably have a bad, or out of adjustment, ignition switch. If it does not start, with the key on and cranking by jumping the starter, then you probably have a fuel or ignition problem. Try the above and get back to me. I can walk you through how to check for fuel and spark if it still wont run.

If you are talking about the vaccum on distributor it's about 45 degrees from your left of the engine. look at auto zone for correct placement

it is the thing that lets petrol into the inlet manifold then it goes into the combustion chamber, basically. These have an amount of sensors on them. one of them may have been knocked or loosened itself

EGR systems are prone to trouble, because it recirculates exhaust gases back into the manifold, the EGR valve gums up with carbon from the exhaust gases, if it is the type you can remove, remove the valve it generally can be cleaned with carb cleaner and replaced.

Not sure if you are asking about engine cooling or interior cooling? Can you give me more information.

You misunderstand code, there is a VSS (Vehicle Speed Sensor) it's problem is that it is giving an intermittent signal. The VSS is what tells the speedometer how fast you are going (among other things) it is located in the transmission (transaxle). '91 is right around the time when they were going away from mechanical speedometer cables so it may or may not have one depending on the production date. If it has a cable the VSS is built into the speedo gear housing. If there is no cable, the VSS is in the same location on the tranny it just has no provision to drive the speedo cable If you have the new part it may help you to find it on the car but it should be in the left side of the transmission housing near where the left drive axle goes into the case. The VSS gear actually drives off of the very end of that axle inside the gear case. I think it is a 10mm head bolt that retains the VSS. Hope this helps, best of luck.

error code E85. Throttle body and butterflies also The ISC is the Idle Speed Control clean them out then take off the battery negative lead and leave off for 2hrs. reconect and the code should be gone.

Try jumpstarting with another car.

could be a dirty sensor on the e-brake system

I would look for other leaks. If you are sure it's leaking at the dipstick tube, there is normally an o-ring where the tube presses into the engine. In general, this is an odd place for a leak, as ther eshould be no oil pressure in the pan (where the tube terminates) and unless the engine is overfilled with oil, the tube end shouldn't be immersed in oil to leak. IF there is pressure in the oil pan, that generally indicates bad rings. I have seen engines where the oil dipstick actually pops out of the tube under pressure when the engine is running due to pressure in the oil pan from blow-by at the rings.

If you can start it with starting fluid, then it is a fuel issue. When a vehicle is stored for a long time, it can cause varnish.