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V8-4.6L

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Differential noise
You first want to be sure it is really the differential failing as rear axle wheel bearings can also fail and make similar noises. If it is the differential, unfortunately the only option is to remove it and rebuild it....
Question
Fuel line pressure relief.
The fuel pressure can be relieved by disconnecting the fuel relay or inertia switch and letting engine run until it dies. Then try to crank the engine several times to make sure it is no able to start. Then you...
Question
Car will not move
You need to look under the drivers side of the dash to see if the shifter linkage in the steering column is moving the shift cable. The bolts that hold the bracket to the bottom of the shifter shaft come...
Question
I accidentally put oil in my coolant tank, what can I do? 1998 Mercury Marquis
Hello - not ideal, but certainly not fatal. You may even be able to remove the coolant reservoir, and drain the coolant/oil mix before any has gotten into the engine. Even if oil is in the coolant, a coolant drain,...
Question
Can a shocks or struts that fits the 2003 Lincoln Navigator also fits the 2003 Lincoln Aviator?
Hello - no, the Navigator is built on the very large SUV platform build by Ford (Expedition), whereas the Aviator is built on the Ford Explorer/Mercury Mountaineer platform. If you are having problems with finding shocks and struts for your...
Question
what is the aluminum block with pipes to the brake filler just above the air suspension compressor and do I have to remove it to r
Hello. We will be happy to assist you. It should not be necessary to remove the aluminum canister completely. You may have to move it to the side for clearance purposes but it should be able to stay attached to...
Question
What could it be when the transmission won't engage in either gear
Hello, thank you for writing in. When dealing with an unresponsive automatic transmission, always start with checking the fluid level. If the fluid is not full, then you need to inspect for a leak, and repair that damage first. There...
Question
Ticking sound
Hello there. Typically a ticking noise is caused by one of two issues; timing chain that is damaged or not properly installed; or cylinder head components that are loose or not receiving the proper lubrication. This could be an oil...
Question
What is wrong with my car? What part could I possibly need to replace?
This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a change in load put on the motor (i.e. putting it in gear or engaging the brakes). The Manifold Absolute Pressure (MAP) sensor senses...
Question
car dome light wont go off with key in the ignition cant turn dome light on maumally every frw day car has to be jumped off
Hello, thank you for writing in. The dome light is triggered by several different switches, and one of them is stuck on. One thing you can do until you diagnose the issue, is unplug the fuse for the light. This...
Question
Engine stalls when putting car into gear.
There could be an issue with the transmission torque converter or the clutches forward and reverse are coming on at the same time inside the transmission causing the engine to stall out when shifting into gear. I recommend seeking out...
Question
My car was making a loud squeaking sound,
The noise may have been due to a seized or seizing component, such as the water pump, that is driven by the engine's serpentine belt. The serpentine belt either broke, or the water pump seized causing the belt to break....
Question
My break pedal and seat adjust switch stop working I checked fuses and there fine
You should check fuse number 1 for late production vehicles and fuse 34 in the engine compartment fuse box to see if there is power to the fuses. Then if you have replaced the blown fuse then try using power...
Question
CV axle shaft issue on my Cadillac.
Hi there. When driving at highway speeds and encountering a shaking feeling in the car after having CV Shafts replaced, there could be an alignment issue with the wheels. What this means is that the lug nuts may not have...
Question
Tranmission 1996 Mercury Grand Marquis
Hello - your symptoms suggest a failure of the forward drum/clutch pack, not an unexpected problem with your extended mileage. Check fluid level and condition (pink and doesn't smell burned is what you look for). I recommend a transmission inspection...
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every few days i have to jump start my car
Hello. Yes a bad starter could cause a car to need a jump start every few days. Additional power provided by an extra battery could be enough to get a weakening started going again. Your vehicle may have a battery...
Question
I just had my exhaust manifold looked over and two mechanics told me I had holes in the manifold
The exhaust manifolds on this engine will warp and cause the exhaust manifold bolts to break off in the cylinder heads. The manifold will need to be removed and drill and tap out the broken bolts in the head. This...
Question
Does oil pan out of a Crown Vic with the engine in the car? 2001 Ford Crown Vic
Hello - yes, removing the oil pan with the engine in the car requires you to raise the engine slightly (disconnect motor mounts and drop the exhaust pipes), and it's a bit tedious, but it can be done. Check this...
Question
Need to find the location on the vehicle of TPMS ECU
Hello, and thank you for writing in. There is likely another fuse box on the inside of the cabin at the passenger floorboard. Check there first. Then you can check next to the fuses below the steering column buy the...
Question
removing cylinder heads
Having the cylinder head 'deck' surfaced is a best practice for mechanical service anytime they are removed. If this step is not completed, the possibility of gasket leakage and potential coolant exposure is increased. I'd bite the bullet and pay...

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