1. Home
  2. Advice
  3. Tags
  4. V8-4.9L

Showing articles & questions for topic
V8-4.9L

Related questions

Question
Q: Antifreeze leaking into car.
Your presumption sounds exactly right to me. The only time that coolant enters the passenger compartment is through the heater core. If you have coolant leaking into your interior it is under no uncertainty that your heater core is leaking....
Question
Q: Cooling fan not coming on
Most of the time when the fan stops coming on it is caused by a fan failure. If the fan stops working it means that either the motor in the fan failed or it blew a fuse. If it blew...
Question
Bad gas mileage, engine misfire - 1992 Cadillac Allante
There can be multiple causes, but it sounds like your fuel injection is injecting too much fuel into the engine for the amount of air it's using. Faulty temperature, air flow, or oxygen sensors, a dirty throttle body or incorrect...
Question
Car makes a whine noise when i drive from take off to about 30mph and then goes away
Based on the information you provided, it sounds like the noise may be coming from the transmission. There are a few technical service bulletins about transmission whining noises. Have a certified professional inspect the noise in person in order to...
Question
Low coolant level light on, low oil light on
Hello. Several owners of the BMW 750i have complained of this issue. The usual fix required is a PCM reflash. The PCM flash will have to be done by BMW but it is the most likely cause and most common...
Question
I want to know what engines would fit my motor mounts properly
Hello. The biggest engine that this vehicle originally came equipped with was the 5.7L V-8. This is the 350 cubic inch version. I am not sure what modifications to your vehicle that would need to be done to make this...
Question
Power steering quit working - 1991 Cadillac Fleetwood
Hi! I'd take a look to be sure the power steering belt is still there. With the engine running, you should be able to see the p/s pump pulley turning. The reservoir should be filled to the full mark. Listen...
Question
my power steering blocks each time I have to maneuver in a parking, not when I'm just driving
If by "blocks", you mean the wheel turns smoothly then at some point in turning it, the wheel suddenly goes stiff and is hard to turn, it it a common symptom of GM products of that era having a bad...
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
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
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
Transmission actualization (updated)
Hello - If i understand you correctly, you are asking where the 5 solenoids (you refer to them as "actualizations") for this transmission (4T60E) are located. These solenoids are mounted to the transmissions valve body, which is located inside an...
Question
My bcm is not working.
Hello. If the computer is quickly overheating and shutting off then it may be possible that excessive voltage or current is flowing too, or through it, causing it to overheat. This can be caused by wiring issues or by a...
Question
I have a 1991 Cadillac DeVille running very poorly very bad fuel economy she runs very poorly no power almost almost like it's bac
Hello. From what you are explaining it sounds like you have a fuel system issue. It sounds like you are getting too much fuel. It can be caused by a leaking fuel injector, but most of the time it is...
Question
1993 cadillac seville motor mounts 4.9 engine
Hi there. On most GM V-8's there are four total engine mounts and two transmission mounts. If you'd like to receive a price estimate to have your engine mounts replaced, please click this link to be forwarded to the engine...
Question
Starts but will not stay running unless you pour gas directly into the engine
It sounds like you may have a fuel supply problem in getting the proper amount of fuel to the fuel injectors. As you know, when you turn the key to on, the fuel pump is activated and the fuel system...
Question
Where is the fuel reset button on my Caddy? 1995 Cadillac Deville
Hello - your Deville does not have a fuel cutoff reset button. If you can't hear the fuel pump running with the key in the "On" or "Start" position, check the fuel pump fuses, then check the fuel pump relay...
Question
Car won’t start
Hi Tyler. Thanks for sending the question tonight. If you've just replaced a battery (like in the last 24 hours) then I would suggest checking the battery cables for corrosion or check your ignition relay. If the battery was replaced...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question