Low oil presure on a M42 318I engine

Asked by Oct 09, 2015 at 11:18 PM about the 1991 BMW 3 Series

Question type: Maintenance & Repair

I have been told there are 2 oil check valves on this engine.
1 on the canister oil filter
the 2nd under the intake manifold.
All specs out... have a pressure reading of 5 PSi S/B 25
Doesn't change when u rev the motor. Is there a check valve under the
manifold? Or any ideas what it might be.

1 Answer

20,965

On a '91 3 series it could be a bad gauge or a plugged line or a faulty sender- that is an ancient car and unless the engine has been rebuilt at some point with a new oil pump, I would suspect that pump is wearing out-

Your Answer

Add photo

Related Questions

  • Bmw 318i engine exchange 1 answer

    Can u easily swap a 318i 2002 engine over to a 320 ? Will wiring etc fit ?

    2002 BMW 3 Series 318i

    -

    Maintenance & Repair

  • leaking front oil seal. cost and time to replace? 1998 318i Auto 2 answers

    Car has done 300,000 km. Has badly leaking front oil seal. Engine is using oil 4litres/5000km. Lot of piston ring blow by and high crank case pressure. Car body quite good. Suspension and brakes good...

    1998 BMW 3 Series 318i

    -

    Maintenance & Repair

  • My car is leaking oil 5 answers

    I noticed my car was leaking oil. Its not a lot of oil, and the car seems to be running fine. I'm thinking it could just be a worn out gasket or something. Any input???

    1996 BMW 3 Series 318i

    -

    Maintenance & Repair

  • Very sluggish 1993 E36 318is 1 answer

    Very high mileage (286k kms) 1993 E36 318is has become sluggish from 0. Initially replaced plugs, fuel pump, injectors. No show! Therefore suspected the electrics, and so changed air flow meter, mass...

    1993 BMW 3 Series 318is

    -

    Maintenance & Repair

  • What is the difference between the 318i and the 318is 3 answers

    1997 BMW 3 Series 318i

    -

    General

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,290
#2 Robert Charlson
Robert Charlson
Reputation 1,450
#3 Michael Branan
Michael Branan
Reputation 1,150
View All

Related Models For Sale

Used BMW 5 Series
594 Great Deals out of 14,897 listings starting at $1,000
Used BMW M3
55 Great Deals out of 1,919 listings starting at $2,250
Used Ford Mustang
363 Great Deals out of 44,490 listings starting at $1,000
Used Honda Accord
814 Great Deals out of 81,613 listings starting at $899
Used BMW 7 Series
165 Great Deals out of 5,952 listings starting at $3,400
Used Chevrolet Camaro
279 Great Deals out of 38,301 listings starting at $1,250

Used Cars For Sale

2017 BMW 3 Series For Sale
19 Great Deals out of 8,336 listings starting at $27,877
2016 BMW 3 Series For Sale
210 Great Deals out of 4,762 listings starting at $21,999
2015 BMW 3 Series For Sale
27 Great Deals out of 857 listings starting at $16,751
2014 BMW 3 Series For Sale
176 Great Deals out of 3,535 listings starting at $11,980
2013 BMW 3 Series For Sale
261 Great Deals out of 4,427 listings starting at $10,900