SOURCE: need to change oil pump on a 89 for ranger
You should not rely on the dash gage for this decision... If you have verified poor pressure, only then should consider changing it. Remember oil can loose pressure at many places internally and replacing it may not accomplish your goal.
Now to change the oil pump without engine removal is quite a task, take off the oil pan and the sump filter, then with lots of light, you can reach up in there with a long allen socket or 12pt 7/16 size?, and pull it out.... not sure if the distributor needs to come out ...remove it only if necessary. be careful not to turn over the crank if you remove the distributor because it is driven by the camshaft as I recall and this would obviously get change your spark timing set up.
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good luck
need be
SOURCE: 1998 FORD 4WD RANGER 128,000
Its not the oil relief valve,since it only works when pressure is to high,and even then you dont lose all pressure.. look into the camshaft synchronizer having a broken drive gear at the bottom.they tend to break..working on one now that has this problem,so I know. luck to ya!
SOURCE: how to change the oil pump of a ford ranger 1993
You didn't post your engine size so please pick the one that works for you....I'll post them all separately:
2.3L Engine
The oil pumps are not serviceable. If defective, they must be replaced.
To install:
WARNING
Do not force the oil pump if it does not seat readily. The oil pump driveshaft may be misaligned with the distributor or shaft assembly. If the pump is tightened down with the driveshaft misaligned, damage to the pump could occur. To align, rotate the intermediate driveshaft into a new position.
SOURCE: ineed the spark plug firing order for 1992 ford 3.0
1992 Ford Ranger 4WD 3.0 liter V-6 VIN "U"
Hope helps with this (remember comment and rated this).
SOURCE: brakes seized on ford ranger
A drum brake shoe lining may have become separated from the metal pad that holds it in place and will cause the wheel to lock. The only repair necessary is to replace the brake linings with new ones. The loose piece of brake lining, if this is the cause, will not likely cause any difficulty removing the drum.
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