shytot4x4
Well-Known Member
- Joined
- September 23, 2003
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- City, State
- West Yorkshire, UK
- Year, Model & Trim Level
- Not got an Explorer now..
I've just done my first 'major' trip (Leeds to Portsmouth and back) since I bought my '00 Ex about 6 months ago. I've noticed what feels like an intermittent and very, very slight misfire when maintaining a constant speed above about 60mph and below 80(ish) mph. That's any speed between those figures, just as long as it is a constant speed. The misfire is a 'total' miss, and not like a single plug going off for a moment and it is so slight that my passenger thought the small 'jolt' was a bump on the road surface. It would happen 4 or 5 times in a minute and then not happen for 15 mins or more. Nor did it happen during a sustained spell of 90 mph cruise controlled driving between Sheffield and Leeds (sorry officer). I never noticed the rev counter twitch, either. I used 2/3 of a tank of Tesco unleaded on the outward journey and filled up with Shell Optimax for the return trip (had an idea it might have been duff fuel...)
Anyway, to cut a long story short I once had something similar but much more drastic on a Ford Granada I used to have. That was traced to a faulty throttle position sensor. It only went wrong when the throttle was held in a constant position for any length of time...
Has anybody ever had similar probs with 4.0 SOHC Exs? I'd hate to put it into my Ford dealer with this type of prob as they don't seem to have much idea about Explorers and I just know it would cost an arm and a leg to sort it out.
BTW, Ford never found the Granada problem despite 2 days of expensive diagnostics. A local auto electrician had it sorted in less than 2 hours...
TIA
Simon H
Anyway, to cut a long story short I once had something similar but much more drastic on a Ford Granada I used to have. That was traced to a faulty throttle position sensor. It only went wrong when the throttle was held in a constant position for any length of time...
Has anybody ever had similar probs with 4.0 SOHC Exs? I'd hate to put it into my Ford dealer with this type of prob as they don't seem to have much idea about Explorers and I just know it would cost an arm and a leg to sort it out.
BTW, Ford never found the Granada problem despite 2 days of expensive diagnostics. A local auto electrician had it sorted in less than 2 hours...
TIA
Simon H