Hello, I have a problem. I just recently purchased a 1999 F250 Super Duty with a 7.3 Turbo Diesel 4X4 . It's a Lariat. The RPM gauge is not working. What could be the cause of that? All the other gauges are working fine. Well except for the dome light stays on and the door ajar light and the airbag light stay on. I'm not sure where to start looking. i don't think there is a fuse for it. Thanks in advance for you help.

 

welcome to FTE.
not sure on the rpm gauge, but i can help you with the interior light and door ajar staying on.
the door closed switch is located int he latch inside the foor. get a can of penetrating oil, and give it a good spray the latch, then open and close the door about 10 times. repeat the spray and open/close again. this should clean the switch and shut the lights off.
i have to do mine every 3 years or so.

airbag light staying on could be a few things. either the truck was in an accident and popped the airbag and it was not replaced, or there is a problem with the airbag circuit.
one of the things that will turn the airbag light on is a bad clockspring in the steering column. it will also take out the horn and cruise control.

 

Thanks Tom. I sprayed the latch with some W-D 40 and the light turns off and the door ajar is off!

The horn and cruise control work so it must be something else with the airbag light. The airbag light flashes then stays on. Could it be throwing some kind of code?

 

yes, if you count the flashes it is a code.

a good code reader or someone with auto enginuity will be able to read the code and maybe diagnose the problem.

 

Tom,

Take her over to the 1999-2003 7.3, someone should have an answer. I dont have my prints at work, so I will look more when I get home.

 

i was getting around to that.
i have been trying to get back into the work routine, and it is kicking by butt.

fordgirl, as Pat said, scroll on down a few to the 99-03 7.3 forum. there are a bunch of real smart fellers there, and some not so smart fellers, but we generally get the problems solved.

 

Ok thanks guys. I posted it over there. Here's a link in case you think of something.

https://www.ford-trucks.com/forums/1...l#post12916797

 

Do you have, had you ever had a remote start?


I am just wondering if for some reason someone tapped that wire, and the only reason I could think it would have been for would be a remote start, this is just a guess, that is why I am asking.

According to the prints, the color should be white, with a pink stripe.