Rangie backfiring, etc under power

Blueboy

Well-known member
Apr 20, 2004
3,218
470
Back in the USA; Rockwood, PA
It certainly seems fuel related, however, I had a new pump installed as part of the prep before shipping it to Switzerland. It was running really well here upon return until it just stopped along the road after being back for a few months. Started back up and never really ran strong again. Never had a problem in Europe and the pump only has about 10k miles on it. Thanks though for your thoughts.
 

Flyfish

Well-known member
Oct 29, 2004
1,402
212
52
St. Louis
Seen same issues from wrong firing order. You may want to check that the firing order is correct. Maybe plug wires got switched.

I've had new rotors that were bad out of the box. My truck only likes Lucas rotors.

Also once it is warm, you can use a laser temp gauge on each cylinder to verify all cylinders are hot/firing. That might show a bad plug, wire, injector etc.

Lastly, check/clean your grounding straps.
 
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Blueboy

Well-known member
Apr 20, 2004
3,218
470
Back in the USA; Rockwood, PA
As an update, the fuseable link connections were very corroded which didn't help.

However, the main problem turned out to be rodent damage!

Evidently a mouse had a "field" day under the dash causing many, many electrical problems.

Also of note I checked and had insurance coverage for rodent damage.

Would not have thought of this in the past, yet, it was part of the insurance we had in Switzerland so checked and the work was covered which is pretty cool.

As you can image, this wasn't an inexpensive fix as basically the dash plus the transmission tunnel had to be taken apart to figure out what worked and what didn't.

Looking forward to a well running beast again.
 

Blueboy

Well-known member
Apr 20, 2004
3,218
470
Back in the USA; Rockwood, PA
Kevin, actually wondered the same yet it ran fine driving back from ME to PA when we got back. So guessing somehow back in PA although really don't know for sure.

Just really looking forward to getting it back if just to see it in the garage. And yes the majority of the bill covered. 😎
 

Blueboy

Well-known member
Apr 20, 2004
3,218
470
Back in the USA; Rockwood, PA
Kevin, actually wondered the same yet it ran fine driving back from ME to PA when we got back. So guessing somehow back in PA although really don't know for sure.

Just really looking forward to getting it back if just to see it in the garage. And yes the majority of the bill covered. 😎