1991 Ford Ranger low output

DERBYCITY

MEMBER
1991 FORD RANGER
6 CYL
2WD
MANUAL
215,000 MILES

I have a 1991 Ford Ranger with 215,000 miles that seems to have major output problem. At first, when I hit the accelarator it was very sluggish from the start and would only get up to 55 or 60 mph. Now that it has sat awhile, it will start but it shuts off after 10 to 15 seconds.I've checked the fuel filter and replaced my coil because it had alot of deposits on the contact area. I realize my truck is old but it ran great before this. Thank you for your time!

1 Reply

MERLIN2021

MECHANIC
17,250 POSTS

Start with the basics, and work your way up, Last tune up was? Wires plugs ALL filters? If all that is ok, check for a stuck EGR, then test fuel pump pressure, If it won't restart, determine what's missing, the engine needs three things to run, Spark at all plugs, gas to all cylinders, and compression in all cylinders, tho an engine may run lacking one in one cylinder, it won't run very well!
https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Go here and checkout our video.
https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm
and this one!
If the check engine light is on, read the codes, the computer is trying to point you in the right direction.
Readers can be purchased by following the link in my signature file, this is a must do step for all computer controlled cars.