1989 toyota supra non turbo low oil pressure

bayrat · 09-15-2010, 04:15 PM

I will check the oil today it seemed ok about a week ago when I checked it. It was not runny and color was good. but today is the first day I have driven it I had this overheating problem about two years ago. I parked the car and am now trouble shooting.

After reading other threads this is starting to look like a bad head gasket
in its infant stage.

Another thread said to look at the number six cylinder would this be the back cylinder away from the front of the car.

btwilson86 · 09-15-2010, 06:28 PM

BTW, your oil pressure is normal. These cars run a low pressure oil system, and on cold start up it should be over 40psi, at operating temp it can be as low as 3psi

bayrat · 09-15-2010, 07:12 PM

Thats good to know it has not suddenly gone down I am just more aware of it and constantly watching it.

09-15-2010, 06:28 PM	#2
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	BTW, your oil pressure is normal. These cars run a low pressure oil system, and on cold start up it should be over 40psi, at operating temp it can be as low as 3psi __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

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09-15-2010, 04:15 PM	#1
bayrat Stock Join Date: Sep 2010 Location: idaho Posts: 4	I will check the oil today it seemed ok about a week ago when I checked it. It was not runny and color was good. but today is the first day I have driven it I had this overheating problem about two years ago. I parked the car and am now trouble shooting. After reading other threads this is starting to look like a bad head gasket in its infant stage. Another thread said to look at the number six cylinder would this be the back cylinder away from the front of the car.

09-15-2010, 07:12 PM	#3
bayrat Stock Join Date: Sep 2010 Location: idaho Posts: 4	Thats good to know it has not suddenly gone down I am just more aware of it and constantly watching it.