Question about 1990 Volvo 740

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Oil light on.

If the oil filler cap gasket is bad, could that lower the oil pressure?

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  • bobmurin Oct 03, 2008

    Thank you. I did resolve the problem. It was the wiring. Had a loose connection. Easy fix. Couldn't have done it without this site. Thank you fixya.

  • John Evans Oct 09, 2008

    Brake lighs work on right side, but not on left. changed bulbs, same thing

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No it wont affect oil preasure.

Posted on Oct 03, 2008


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3 Answers

Pcv valve I changed the head gasket in my 2002 Nissan Altima 2.5s and did a oil change and I had the oil filler cap off when I started it and it oil came out the filler


Oil supply to the overhead camshaft and valve gear is fairly vigorous and so some spray from there is to be expected without the filler cap.

Unlikely a problem with the pcv valve - they rarely give trouble unless seriously gummed up with carbon-type deposits and then a thorough clean mostly restores them.

Aug 03, 2016 | Nissan Cars & Trucks

1 Answer

Honfa acord blowing oil out tailpipe


It sounds like you might have a blown head gasket, bad valve seals, worn/broken rings, or a bad PCV valve/filter. Remove the oil filler cap and check how much air comes out. If a lot of air is coming out of the oil filler hole, you might have bad rings. The PCV valve helps to take the crankcase gasses (blowby from the rings) and run them through the combustion system to burn them. The most likely cause is a blown head gasket. The high pressure oil is leaking through the head gasket directly into one of the engine cylinders. Check each of the spark plugs to see if one of them is much dirtier than the others. A bad intake valve seal could also do the same thing, although probably not as bad.

Jan 12, 2014 | Cars & Trucks

1 Answer

Oil pan leak


For oil pump,oil pump pressure,oil warning light,oil low,oil ewplacing and other car engine oil problems,the help links are provided below.Click the link to go through the procedure :-----Oil light came on and the car died?http://schematicsdiagram.blogspot.in/2012/03/oil-light-came-on-and-car-died.html--------How to replace Oil filler cap or breather cap?http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-oil-filler-cap-or.html---------Oil pouring out from left front of engine?http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html------Common Causes of Car Oil Leaks?http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html--------Troubleshoot Car Oil leak?http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html--------Oil change details?http://repairhelpcenter.blogspot.com/2012/01/toyota-highlander-sport-oil-change.html---------Low oil pressure light?
http://howtobyme.blogspot.com/2011/11/low-oil-pressure-light-on-dodge-magnum.html
----------
leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html ----------
Car Turns OFF due to low oil pressure warning light?

http://schematicsdiagram.blogspot.com/2011/12/car-turns-off-due-to-low-oil-pressure.html

------------
leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html

----------
For more oil and oil pump details check out the direct links below: ---

How to Replace Oil Pan on car?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-oil-pan-on-audi-a4-and.html
--------
How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
-----------
HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
----------
HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
----------
HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
-----------
How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
----------
HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

-------


Oil pan Gasket on car?
http://howtobyme.blogspot.com/2011/11/oil-pan-gasket-on-1998-toyota-tercel.html

---------

Oil pressure for car?

http://schematicsdiagram.blogspot.com/2011/12/oil-pressure-for-2001-gmc-jimmy-v6.html

----------
How to replace Oil Pan on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pan-on-2008-honda.html

---------
How to replace Oil Pressure Sensor on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pressure-sensor-on.html

-----------
How to replace Oil Pump on car?

http://howtobyme.blogspot.com/2011/12/how-to-replace-oil-pump-on-2008-honda.html

----------
Car oil leak?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leak.html

----------
Car oil leaks from valve cover gasket?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html

----------
Oil light blinks on dashboard?

http://schematicsdiagram.blogspot.com/2011/12/oil-light-blinks-on-dashboard.html

-----------
Oil pressure issues on car?


http://repairhelpcenter.blogspot.com/2012/01/oil-pressure-issuers-on-toyota-tundra.html

-----------
Oil leaks from air filter on ford?

http://technoanswers.blogspot.com/2012/01/oil-leaks-from-air-filter-on-ford.html

---------
Wire running from oil pan to alternator?

http://technoanswers.blogspot.in/2012/02/wire-running-from-oil-pan-to-alternator.html

--------------
Why car leaks oil from oil filter?

http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-leaks-oil-from-oil-filter.html

------------
Why engine is consuming lots of oil?

http://schematicsdiagram.blogspot.in/2012/02/2008-scion-xb-24l-engine-is-consuming.html

-----------
Maint REQD message on car dash?

http://schematicsdiagram.blogspot.in/2012/02/maint-reqd-message-on-2008-lexus-rx350.html

------
Remove Sump oil pan?

http://repairhelpcenter.blogspot.in/2012/03/remove-volkswagen-sump-oil-pan.html

--------
Sump not coming OFF?

http://repairhelpcenter.blogspot.in/2012/03/sump-not-coming-off.html

-----------
How to remove the sump on car?http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-sump-on-vw-beetle.html----------Car oil sump removal diagram?

http://repairhelpcenter.blogspot.in/2012/03/volkswagen-beetle-oil-sump-removal.html

---------

This will help.

Thanks.

Feb 28, 2012 | 2001 Kia Sephia

2 Answers

Oil filler cap left off after oil change, 2010 Subaru Outback. Oil level is fine. Could this have caused any engine problems?


For oil pump,oil pump pressure,oil warning light,oil low,oil ewplacing and other car engine oil problems,the help links are provided below.Click the link to go through the procedure :-----Oil light came on and the car died?http://schematicsdiagram.blogspot.in/2012/03/oil-light-came-on-and-car-died.html--------How to replace Oil filler cap or breather cap?http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-oil-filler-cap-or.html---------Oil pouring out from left front of engine?http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html------Common Causes of Car Oil Leaks?http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html--------Troubleshoot Car Oil leak?http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html--------Oil change details?http://repairhelpcenter.blogspot.com/2012/01/toyota-highlander-sport-oil-change.html---------Low oil pressure light?
http://howtobyme.blogspot.com/2011/11/low-oil-pressure-light-on-dodge-magnum.html
----------
leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html ----------
Car Turns OFF due to low oil pressure warning light?

http://schematicsdiagram.blogspot.com/2011/12/car-turns-off-due-to-low-oil-pressure.html

------------
leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html

----------
For more oil and oil pump details check out the direct links below: ---

How to Replace Oil Pan on car?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-oil-pan-on-audi-a4-and.html
--------
How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
-----------
HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
----------
HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
----------
HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
-----------
How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
----------
HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

-------


Oil pan Gasket on car?
http://howtobyme.blogspot.com/2011/11/oil-pan-gasket-on-1998-toyota-tercel.html

---------

Oil pressure for car?

http://schematicsdiagram.blogspot.com/2011/12/oil-pressure-for-2001-gmc-jimmy-v6.html

----------
How to replace Oil Pan on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pan-on-2008-honda.html

---------
How to replace Oil Pressure Sensor on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pressure-sensor-on.html

-----------
How to replace Oil Pump on car?

http://howtobyme.blogspot.com/2011/12/how-to-replace-oil-pump-on-2008-honda.html

----------
Car oil leak?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leak.html

----------
Car oil leaks from valve cover gasket?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html

----------
Oil light blinks on dashboard?

http://schematicsdiagram.blogspot.com/2011/12/oil-light-blinks-on-dashboard.html

-----------
Oil pressure issues on car?


http://repairhelpcenter.blogspot.com/2012/01/oil-pressure-issuers-on-toyota-tundra.html

-----------
Oil leaks from air filter on ford?

http://technoanswers.blogspot.com/2012/01/oil-leaks-from-air-filter-on-ford.html

---------
Wire running from oil pan to alternator?

http://technoanswers.blogspot.in/2012/02/wire-running-from-oil-pan-to-alternator.html

--------------
Why car leaks oil from oil filter?

http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-leaks-oil-from-oil-filter.html

------------
Why engine is consuming lots of oil?

http://schematicsdiagram.blogspot.in/2012/02/2008-scion-xb-24l-engine-is-consuming.html

-----------
Maint REQD message on car dash?

http://schematicsdiagram.blogspot.in/2012/02/maint-reqd-message-on-2008-lexus-rx350.html

------
Remove Sump oil pan?

http://repairhelpcenter.blogspot.in/2012/03/remove-volkswagen-sump-oil-pan.html

--------
Sump not coming OFF?

http://repairhelpcenter.blogspot.in/2012/03/sump-not-coming-off.html

-----------
How to remove the sump on car?http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-sump-on-vw-beetle.html----------Car oil sump removal diagram?

http://repairhelpcenter.blogspot.in/2012/03/volkswagen-beetle-oil-sump-removal.html

---------

This will help.

Thanks.

Feb 14, 2012 | 2010 Subaru Outback 2.5i

1 Answer

Oil pressure light comes on at idle


For oil pump,oil pump pressure,oil warning light,oil low,oil ewplacing and other car engine oil problems,the help links are provided below.Click the link to go through the procedure :-----Oil light came on and the car died?http://schematicsdiagram.blogspot.in/2012/03/oil-light-came-on-and-car-died.html--------How to replace Oil filler cap or breather cap?http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-oil-filler-cap-or.html---------Oil pouring out from left front of engine?http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html------Common Causes of Car Oil Leaks?http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html--------Troubleshoot Car Oil leak?http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html--------Oil change details?http://repairhelpcenter.blogspot.com/2012/01/toyota-highlander-sport-oil-change.html---------Low oil pressure light?
http://howtobyme.blogspot.com/2011/11/low-oil-pressure-light-on-dodge-magnum.html
----------
leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html ----------
Car Turns OFF due to low oil pressure warning light?

http://schematicsdiagram.blogspot.com/2011/12/car-turns-off-due-to-low-oil-pressure.html

------------
leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html

----------
For more oil and oil pump details check out the direct links below: ---

How to Replace Oil Pan on car?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-oil-pan-on-audi-a4-and.html
--------
How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
-----------
HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
----------
HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
----------
HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
-----------
How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
----------
HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

-------


Oil pan Gasket on car?
http://howtobyme.blogspot.com/2011/11/oil-pan-gasket-on-1998-toyota-tercel.html

---------

Oil pressure for car?

http://schematicsdiagram.blogspot.com/2011/12/oil-pressure-for-2001-gmc-jimmy-v6.html

----------
How to replace Oil Pan on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pan-on-2008-honda.html

---------
How to replace Oil Pressure Sensor on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pressure-sensor-on.html

-----------
How to replace Oil Pump on car?

http://howtobyme.blogspot.com/2011/12/how-to-replace-oil-pump-on-2008-honda.html

----------
Car oil leak?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leak.html

----------
Car oil leaks from valve cover gasket?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html

----------
Oil light blinks on dashboard?

http://schematicsdiagram.blogspot.com/2011/12/oil-light-blinks-on-dashboard.html

-----------
Oil pressure issues on car?


http://repairhelpcenter.blogspot.com/2012/01/oil-pressure-issuers-on-toyota-tundra.html

-----------
Oil leaks from air filter on ford?

http://technoanswers.blogspot.com/2012/01/oil-leaks-from-air-filter-on-ford.html

---------
Wire running from oil pan to alternator?

http://technoanswers.blogspot.in/2012/02/wire-running-from-oil-pan-to-alternator.html

--------------
Why car leaks oil from oil filter?

http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-leaks-oil-from-oil-filter.html

------------
Why engine is consuming lots of oil?

http://schematicsdiagram.blogspot.in/2012/02/2008-scion-xb-24l-engine-is-consuming.html

-----------
Maint REQD message on car dash?

http://schematicsdiagram.blogspot.in/2012/02/maint-reqd-message-on-2008-lexus-rx350.html

------
Remove Sump oil pan?

http://repairhelpcenter.blogspot.in/2012/03/remove-volkswagen-sump-oil-pan.html

--------
Sump not coming OFF?

http://repairhelpcenter.blogspot.in/2012/03/sump-not-coming-off.html

-----------
How to remove the sump on car?http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-sump-on-vw-beetle.html----------Car oil sump removal diagram?

http://repairhelpcenter.blogspot.in/2012/03/volkswagen-beetle-oil-sump-removal.html

---------

This will help.

Thanks.

Feb 05, 2012 | 1997 Porsche Boxster

1 Answer

Oil light came on checked the oil it was good went to open the oil cap the oil around the cap look mud like


The oil light indicates your system needs added oil. Check the dipstick and add as needed. If you have excessive foaming in the filler tube, you may have an air leak in the engine that needs to be addressed, such as a bad gasket. Good luck.

Dec 17, 2010 | 2000 Cadillac Catera

5 Answers

Oil coming out of engine oil filler cap even though i have changed oil filler cap


The engine breather pipe seems to be blocked.
It may also damage the oil seals.

Oct 27, 2009 | 1992 Volvo 940

2 Answers

Its blowing oil out of the oil cap why would this be ?? also i bit of white smoke then came out the back


The oil level may be too high.
Is the filler cap tight?
blow-by in the cylinder piston rign area. A wet test of engine compression will detect this.
A bad had gasket. Engine will be over heating as water is being used up during combustion.
Bad head gasket. Could explain white smoke in exhaust.

If the engine is overheating I would be suspecting a problem in the head area.

Good Luck. SnugglePants

Oct 26, 2009 | 1988 Mitsubishi Galant

1 Answer

Overheating


If you are losing fluid and you do not see it on the floor it is going either of two places. In the oil or out the tailpipe. The fluctuations you see and the fan going on and off is the result of low fluid levels. Sometimes the sensors are touching the fluid and sometimes it is not. It sounds like the head gasket is bad. Check the oil filler cap and dipstick for white milky creamy stuff. If you see it the water is going into the oil and is destroying the lubricating properties of the oil and will destroy the motor if not taken care of. Change the oil very often until it is fixed. If there is no milky stuff it is likely leaking to the exhaust which is not as bad but still needs to be fixed. If you pressure test the radiator system it will likely loose pressure slowly if the gasket is bad.

Jul 16, 2008 | 1993 Honda Civic 4 Door

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