2004 Chrysler PT Cruiser Oil Pressure indicator light

WOODYDEV

MEMBER
2004 CHRYSLER PT CRUISER
4 CYL
2WD
AUTOMATIC
65,000 MILES

The oil light on my PT comes on about 1200 rpm. There is the correct amount of oil in the car, there does not seem to be anything other than the light comming on to indicate a problem.

Saturday, January 16th, 2010 AT 12:34 PM

3 Replies

CARADIODOC

MECHANIC
33,916 POSTS

Do you have a gauge too? If so, and if it reads normally, suspect a defective sending unit.

Caradiodoc

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Sunday, January 17th, 2010 AT 8:54 AM

WOODYDEV

MEMBER
2 POSTS

Do not have a gauge; wondering if there was a warning indicator concerning oil changes. Will have approximately 4200 miles on current oil at this scheduled change.

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Sunday, January 17th, 2010 AT 7:23 PM

CARADIODOC

MECHANIC
33,916 POSTS

Based on the symptoms, I'd suggest having the pressure checked with a mechanical gauge. If you don't have a dash gauge, you probably don't have an oil change reminder light either. Those are only found in a few car models. Extended mileage between oil changes won't make the warning light come on either.

Engine mechanical problems will usually result in lower oil pressure at idle. Speeding up the engine increases the output volume and pressure of a worn oil pump. Low pressure due to worn bearings will also show up at idle. The fact that the warning light comes on at 1200 rpm suggests a problem with the spring-loaded diaphragm in the sending unit. That's why the pressure should be checked first with a mechanical gauge, so you'll know exactly what you have.

Caradiodoc

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Sunday, January 17th, 2010 AT 11:48 PM