2004 lincoln navigator, after power washing it, (I know, i will never do that again) i lost the swinging step bars, all interior lights including the dash, no radio, no navigation. I went through all the typical troubleshooting and still nothing. No diag tool will read any code, its as if there are no codes.... After tons of research I figured it might be the 300 series relay that are built on the fuse box. I replaced the fuse box with the latest FORD certified box with all new fuses and relays. Still that same issue. Need a serious idea to get past this one.

2004 lincoln navigator, after power washing it, (I know, i will never do that again) i lost the swinging step bars, all interior lights including the dash, no radio, no navigation. I went through all the typical troubleshooting and still nothing. No diag tool will read any code, its as if there are no codes.... After tons of research I figured it might be the 300 series relay that are built on the fuse box. I replaced the fuse box with the latest FORD certified box with all new fuses and relays. Still that same issue. Need a serious idea to get past this one. 1 Answer

I cut off the catalytic converters on my 2001 Navigator and i can still see daylight through them. How do you know if you need new ones? I also changed all the coils and plugs but still losing lots of power on the slightest incline and check engine light flashes like crazy 6 Answers

How do you know if the catalytic converters need to be replaced

2003 lincoln navigator. i have a tapping noise coming from the rear end of the car it usually only happens when the car is in drive or reverse or taking tight turns at low speed and even sitting at idle at a stop light. It doesnt sound like a deep sound like one that would come from internals but rather like something is lose. is there any that is prone to come loose? right before i bought the car they had to air bag suspension replaced with normal suspension but it doesnt sound like its coming from the suspension 3 Answers

2003 lincoln navigator. i have a tapping noise coming from the rear end of the car it usually only happens when the car is in drive or reverse or taking tight turns at low speed and even sitting at ...

if I remove the fuse for the air ride compressor, will it affect any thing else on the vehicle 1 Answer

I am deleting the air bags and installing coil overs an all four corners of my 2003 Navigator. If I remove the fuse for the air ride compressor, will it affect any thing else on the vehicle

Can I run the AC? If I have a Heater Hose that still needs to be replaced? 1 Answer

I have a Heater Hose (not in stock) I'm in Arizona. Can I run the AC without an issue? thx. see original post: https://www.cargurus.com/Cars/...