Engine Performance problem
1998 Ford Ranger 6 cyl Four Wheel Drive Automatic 170000 miles
I have a 98 Ford Ranger 4x4 with the 4 litre engine and auto transmission. The engine stalls or hestitates when going up fairly steep hills. This always happens on the steeply inclined parts of the rough, bumpy, backcountry dirt roads over which I travel most of the time. On paved highways and the grades encountered on highways the engine performs well, even when accelerating up a paved incline at highway speeds. But at slower speeds on inclined backcountry roads there is a problem, and regardless of whether the tank is full, half full or nearly empty. However, the engine only stalls/hesitates when going forward. It works fine in reverse, backing up any hill no matter how slowly, steeply inclined or bumpy. The fuel tank has been removed, inspected and was found to be very clean, the main fuel filter replaced, and the pump appears to be working.
I brought the truck with me from Canada to Nicaragua where I now live. Most mechanics in Nicaragua know very little about fuel injected gasoline engines since most vehicles sold in this country are diesel. A mechanic from a garage I use went out with me for a road test with a fuel pressure guage and the fuel pressure checked out OK for city and highway driving. Unfortunatley the garage is over an hours travel from the type of road conditions on which I am having problems and they didn't want to send a mechanic out for several hours even on my nickel. (And, yes, this is the only garage I come close to trusting) So, any thoughts or help with what the problem could be would be greatly appreciated. Many thanks.
Alan (aka Skyguy)
have the same problem?
Wednesday, December 23rd, 2009 AT 2:29 PM