Engine/Transmission (1994 - 1998) Seems to be loosing power

[DBeardslee]

My neighbor has a 98 12 valve with a 5-speed,3. 54, 180,000 miles on it and it has always seemed to have more than enough power. But here lately it seems that it is loosing the power in the lower end, it seems to have more than enough in the top end but don't want to have it wound up all the time to get any power out of it. :{ Does anyone have any ideas?? Thanks

 

[ABorchard]

Check the fuel pressure or change the overflow valve. Easier for most folks to just change the valve.

You won't find a better price on a valve than here

Precision Diesel Injection and Turbo Inc.

Marty Tompkins

888-734-7349

$30 + $7 shipping and handling.





Replacing the OF valve is a five minute one wrench job if you don't drop the sealing washers, stuff a rag under the valve to catch a falling washer. Remove the old valve and put new one in it's place. Occasionally the notch in the manifold you see to the left of the OF valve in the picture needs to be filed or ground a little to allow the old valve to be removed. Don't bend the line to remove the valve, it will make it very difficult to line up right again. New style OF valves don't always have the retainer on top that says not to remove, don't worry it's just a design change.



The object in the lower left corner is the oil fill cap.

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