Dave’s Free Car Repair Advice

Subject:  accidentally put diesel fuel in vehicle

Donna writes: I would appreciate some assistance…..accidentally put diesel fuel in 2000 Yukon instead of unleaded……what can happen, had the fuel siphoned out and added fuel injector cleaner but truck tried to cut out earlier but runs. PLEASE help!

Donna, I’ll bet that never happens again!

Anyway, the fuel injector rail should have been flushed out also. The oxygen sensor may or may not get damaged, but I think your fuel pump will be ok.

Once all the diesel fuel has run its course and your engine quits smoking you should be all good.

Subject:  Integrated relay control module burns out the fuel pump relay circuit

Jeremy writes:  I have a 92 ford Taurus that keeps burning out the ircm circuit for the fuel pump. when it did it the first time I replaced the fuel pump but it still did not start. I traced the wiring and found the ircm bad. I replaced it and it burnt out again. After that time I traced the circuit and found it ties in with the cooling fans also. I check that circuit out but found no problems that I could tell. Have you seen this problem before or have any advice on what to do? Any help would be appreciated. Jeremy

Mark writes: Is there any place online which would give the general directions for replacing this fuel pump?

Mark, If you Google it you may get lucky, although I just did a Google search for it and didn’t get any good hits on the replacement of this part.

You know the fuel pump is in the fuel tank and you need to siphon the fuel out safely first before attempting to get to it. Don’t forget to disconnect the battery prior to any repair with the fuel system.

I would recommend that you get a repair manual and follow instructions if you are to do it yourself.