How can I test for a faulty oil pressure sending unit

Asked by Dec 19, 2014 at 01:41 PM about the 2002 Chevrolet Blazer 2 Door LS

Question type: Maintenance & Repair

I have been banging my head for the past few months - replaced the fuel pump/wire pig
tail with AC Delco ( and new fuel filter ).  Worked for a few weeks - then no
pressure/juice to pump.  Dropped the tank/reinstalled pump ( just in case there was a
short somewhere ) - worked for a few weeks then no pressure/no juice to pump.  My
questions is this - would a failing / faulty oil pressure sending unit cause kill the power
to the pump and how would I know if this is the problem.  is there a way to test this
before removing the distributor cap / replace unit.  One other tid bit / I have noticed
while running the oil pressure fluctuates quite a bit at idle after the engine warms up  /
sometimes dropping low enough to almost stall..   Any ideas ./ advice?

1 Answer

17,335

It would kill the power to the pump. See if the pump is getting power

Your Answer

Add photo

Related Questions

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,890
#2 yetilikesbeer
yetilikesbeer
Reputation 1,190
#3 Rowefast
Rowefast
Reputation 820
View All

Related Models For Sale

Used Chevrolet TrailBlazer
93 Great Deals out of 5,317 listings starting at $1,700
Used Chevrolet Tahoe
772 Great Deals out of 28,452 listings starting at $1,500
Used Chevrolet S-10
10 Great Deals out of 1,657 listings starting at $2,450
Used Chevrolet Silverado 1500
2,290 Great Deals out of 155,163 listings starting at $1,395
Used GMC Jimmy
288 listings starting at $1,995
Used Jeep Grand Cherokee
845 Great Deals out of 68,679 listings starting at $864
Used Ford Explorer
936 Great Deals out of 73,995 listings starting at $750
Used Chevrolet Camaro
282 Great Deals out of 38,299 listings starting at $1,250
Used Ford F-150
2,690 Great Deals out of 212,354 listings starting at $1,000
Used Jeep Cherokee
347 Great Deals out of 55,335 listings starting at $2,295
Used Chevrolet Impala
793 Great Deals out of 34,384 listings starting at $799
Used GMC Yukon
518 Great Deals out of 17,126 listings starting at $1,799