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DeVille

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Question
Does a 1994 Cadillac Deville have a crankshaft sensor or do I need to replace the whole distributor?
Hi there. The ignition system for the 4.9L in your vehicle, should be HEI (high energy ignition) and does not have a CKP (crankshaft position sensor). The pick-up coil is inside the distributor and most likely is not the cause...
Question
Overheating
This may be related to a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working...
Question
Car will not start, some accessories inoperative,transmission stalls out?
Hi there. The no start, inoperative radio and turn signals could all be related to a faulty ignition switch. It could also be, a blown fuse(s) for the inoperative radio and turn signals, and the no start could be fuel...
Question
High pitched whining noise on startup
The secondary air injection pump is well known for making noises such as this on all cars that use them. It only runs when the motor is below a preset temperature. So the longer you let the car sit, the...
Question
How did I kill 3 alternators and 4 batteries in 6 months?
Your description suggests you may have a bad grounding problem, a short somewhere, or potentially a failing voltage regulator. The voltage regulator regulates the power charged to the battery by the alternator to ensure that the battery is not over...
Question
my son replaced a brake line on my cadillac deville 2001 but he cant seem to bleed them properly
Sometimes replacing a brake line or hose can cause the brake system to become air-bound. Try gravity bleeding the brake system first. With the brake fluid reservoir cap removed and the brake fluid level correct, loosen the bleeder screw at...
Question
Motor mounts - 2004 Cadillac DeVille
Yes, this is correct. There are 4 in total. However, this is not an easy job to undertake as you know. There are two on each side in the front and rear. Removing them involves jacking the car up and...
Question
Oil pan gasket has a slow leak/drip
A slow oil leak from the oil pan is usually not an urgent issue, however you will of course want to be sure to check the oil frequently to be sure you do not run low and cause substantial engine...
Question
Charging problem - 1999 Cadillac DeVille
First, you should check for injector pulse and fuel pressure. If either of these are not working, then there are some specific diagnostic paths to follow. If it is only spark you are missing, check all the fuses. Make...
Question
Serpentine belt keeps coming off
The pulleys will not just lose their alignment. For this to happen, there has been a failure somewhere. One of the most common causes I have found for this problem, on a serpentine belt system, is that the belt tensioner...
Question
Car overheating. Is that typically the thermostat or water pump?
Hi there - yes, there are a few ways to diagnose which component is failing. If hot coolant is circulating through the radiator (after the warmup), and the engine is running hot, either the radiator is clogged (internally or externally),...
Question
I had an oil change then went to the carwash - when I came home the car kept stalling even though I cleaned the throttle body
Hello, your issues are likely related to an electrical component of some kind. An oil change is very unlikely to have a major impact on this. If there was an issue with the oil, you would have noises and different...
Question
The traction control light comes on until the ignition is switched off, then it is off for a short time, then on again.
As you may know, your car is equipped with wheel speed sensors on each of the four wheels, which monitor wheel speed while relaying this information to the traction control module, which is controlled by the car's ECU. When the...
Question
do you really need take out the motor to do the oil pan gasket or is there a way around that?
Hi there: With the 93 Cadillac DeVille V-8, you don't need to remove the engine to remove the oil pan and replace the gasket. You will have to remove lower cross member and some other front engine cover components; which...
Question
Loud exhaust
Hello. The symptoms and situation that you describe are commonly associated with an exhaust leak. If your muffler or exhaust pipes were bent when the accident occurred then it is very possible that they developed an exhaust leak and are...
Question
Car seems to misfire after running out of gas.
In today's modern vehicles, running a vehicle completely out of fuel can be damaging (if not catastrophic) to your vehicle's fuel pump. As you may know, the fuel pump relies on the fuel running through it in order to maintain...
Question
how much will it cost to fix my brake booster in a Cadillac
Hi there: Although this issue may be caused by a faulty brake booster, it's also possible that other brake system components may be contributing to this problem. As such, you might be better served to have a professional mobile mechanic...
Question
What's wrong with my car
Hello. You will want to start by looking at these issues separately, keep it simple. When coolant flows into the overflow reservoir it means that the coolant is heating up, expanding, and needs a place to go. Typically the coolant...
Question
Engine and radiator dash lights
Hello. With the check engine and cooling system light both being illuminated, the first step you need to take is to have the vehicle scanned for diagnostic troubleshooting codes. This can be done by most technicians, and can also be...
Question
Have 2005 Cadillac Deville and had front and back struts replaced 1 1/2 years ago. Having how long do struts last when replaced?
Hi there: Though there is not a specific maintenance period for struts, they do need to be changed as they fail and cause problems. Putting off changing your struts for too long can make your vehicle unstable to drive and...

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