Showing articles & questions for topic
V8-5.4L

Related questions

Question
Runs Like Crap
To answer your question simply - YES. When a catalytic converter is not installed within the exhaust system it tends to negatively impact the performance of any modern combustion engine.
Question
Fog lights not working says high beams are on. Multi function switch does nothing.
Hi there. The issue is with the multi-function light switch. I recommend replacing the multi-function light switch. What is happening is that the contacts on the switch are damaged and causing the lights to have no effect. If you need...
Question
How long it take to get a.c. compressor out a 2002 navigator
Hi there. That really depends on the prep work and experience of the mechanic completing the AC compressor replacement. In some cases, it can take up to 5 to 8 hours to remove, replace and recharge the AC system correctly....
Question
Dont have vacuum on any of the vacuum system
The line to the brake booster should be disconnected to see if it is getting any vacuum from the engine when it is running. If it is not then remove the check valve in the line to see it it...
Question
My van's electrical system is completely dead. I suspect the mega fuse. I'd like advice about whether that may be the issue.
You will need to check the battery clamps to see if they are loosing connection between the post and the clamp. You can check them with a volt meter and do a voltage drop for the clamps to see if...
Question
How long do take to a a.c. compressor off a 2002 navigator
The labor time for the removal and replacement of an A/C compressor on a 2002 Lincoln Navigator is 1.4 hours. However, this job should include the replacement of the accumulator and a recharge. The total time for all three of...
Question
My right blinker won't stop
The turn signal switch should be disconnected to see if the switch is the cause of the turn signals staying on. If the light stop when you put the 4 way flashers on and off ten times then replace the...
Question
No rear lights of any kind or working. ( No running, brake, or signal lights)
Check the ground wires on the back of the vehicle as they are either broke or loose. Over time the bolt that holds the ground wire to the frame tends to become rusty causing the ground to have a high...
Question
What would be cost effective ? Rebuilding my 5.4 triton engine or buying at refurbish one
Hi there. When it comes to rebuilding an engine and buying an engine that is rebuilt, there could be different cost when it comes to the job. When rebuilding the engine, there are engine kits that are in need to...
Question
the truck turns over and over, but will not start
Without more information on the vehicle i would have to say you may have a fuel pump that is not pumping fuel. You should have the computer scanned for codes to the crankshaft or camshaft sensors. Then have the fuel...
Question
I can jump my Navigator and it will idle for ever...until I shut the door. Then a mechanism next to the wiper fluid starts vibrati
Hello, thank you for writing in. The vehicle is likely having issues with the charging circuit, or related electrical system. With that being said, we need to identify the component that is vibrating and see how it is related to...
Question
Rear differential
The service manual does not call for the differential to be serviced unless there is a leak. You do mention there was a pinion seal leak before first service. The pinion seal will leak when the pinion bearing is bad....
Question
AC Evaporator smoke test 1998 Lincoln Navigator
Hello - unfortunately, AC leak diagnosis is not a service YourMechanic offers at this time. Thanks for thinking of us however!
Question
Hey how are you I just want to KNOW about how much to fix my 2005 Expedition electronic throttle problem
Hi there. The first thing we would need to do is determine what the root cause of the light coming on. It could be any part of the throttle circuit; wiring harness, loose connection, failing throttle motor, failing throttle sensors,...
Question
Side mirror heaters
Hi there. In most cases when this occurs, it's due to an electrical fault; either a relay from the switch to the mirror heating element or the switch itself. The best way to diagnose this issue is to have a...
Question
Wiring problems
You could have an intermittent fault in the starter motor. Be sure you start your diagnostic with a fully charged battery. Of course, confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting....
Question
Mis-fire
Carefully check the EGR system. If EGR is stuck open you can get global misfiring. Check integrity of PCV system. The fuel system needs to be ruled out including the mundane, but real, possibility that you have a tankful of...
Question
Engine is misfiring and the service engine soon light is on.
Hi there. If the engine is misfiring you would need to check the spark plugs and fuel injectors to see what is not working. If the spark plug has no spark, then check the spark plug wire for spark by-passing...
Question
ran out of gas, now won't start
Your first attempt at resolving should indeed be to simply add more fuel to the tank. Three more gallons will be sufficient if the problem is low fuel. If the starter motor itself is not functioning (i.e., no engine cranking),...
Question
Speedometer not reading correctly.
Hello, thank you for writing in. The speedometer reads information coming in from the BCM (body control module). Which gathers its information from the wheel speed sensors, and engine speed sensors. With the meter partially working, it is likely an...

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