Is my OH comp. toast?

[Walker]

I just washed my truck with a high pressure hose, and now my overhead computer is freakin'. I'm getting a bunch of screwy numbers and symbols on every mode. I washed the cab marker lights and lightly sprayed the engine bay, the same as I always do. Water had to get in somewhere, and I'm guessin' under a cab light.



Will the thing dry out and work right again? Or is it fried?

 

[MoparDave]

It may just be that water has got in to the outside temp sensor mounted near the grill. If it was me I’d let it dry out a few day before you get to concerned

 

[Walker]

It's been a few days now, and the OH computer is still acting up. The compass and mileage modes are the only 2 not working right. The others have cleared up, but it looks like the thing is permanently shot. Has anyone been inside one of these things, or know how I might be able to fix the problem? If not, what's the cost estimate of a new one?

 

[Alan Reagan]

Is the truck under warranty by any chance?

 

[Walker]

Drive train only (60K miles).

 

[Chipstien]

Ouch... that will be a expensive fix if you go to the dealer. I would give it another month before you break out the cash. I would also double check your cab lights and make sure they are not leaking.



Just a word of advice... I have found that pressure washers do more harm than any good, especially in the engine compartment. Use a hose and a brush or mit for the outside and spray the engine compartment with Simple Green... . let sit for ten minutes and hose down with low pressure. It works better and safer for the truck.