Question about 1985 Chevrolet Camaro
Isuzu 10 wheeler truck engine model 6 sd-1
I gather from your multiple posts with the same problem that you weren't able to locate an Isuzu cargo truck in the "Add Specific product" window... but I'm assuming you have one with diesel engine and your problem is a low oil pressure indication.
First, you need to make sure there is the proper amount of oil in the crankcase... so check the oil, add if needed, then see if the problem persists.
If so, verify that there actually is a low il pressure condition and this is not just a faulty indication. If you have a mechanical oil pressure gauge, we'll assume it is accurate... but if it is electrical, you will need to obtain a service pressure gauge. When you have this, remove the oil pressure sending unit from the engine block, and with the right adapters, fit the service gauge to the sending unit hole... then check the oil pressure situation with the more accurate service gauge. Note if the low oil pressure is only at idle, or if it persists throughout the RPM range.
If the low oil pressure clears at RPM, you probably have a problem in the oil pump (worn) or oil pressure relief valve (stuck), but that is usually a part of the pump assembly.
If the low oil pressure is persistent throughout the RPM range, the possible causes still include the pump but also take in loose crankshaft main or rod bearings or possibly an internal leak in the pressurized oil galley circuit, such as a lost galley plug (metal plug used to close the hole where the internal oil passage was machined/drilled). And there are other possibilities...
A temporary help with this problem is to go to a higher viscosity (thicker) oil, and do a filter change when the oil is changed. The thicker oil does not escape loose bearing fits as easily, thus helping build pressure.
Hope this is illuminating and helpful, and good luck with the problem. Do not hesitate to post further questions or comments an let us know how it goes...
Posted on Jun 18, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 08, 2014 | 1996 Isuzu Rodeo
on Dec 20, 2016 | Cars & Trucks
Jan 18, 2011 | 2002 GMC Envoy
Oct 07, 2010 | 1989 Isuzu Trooper
Oct 11, 2009 | 1996 Isuzu Hombre
Aug 11, 2009 | 1998 Jeep Cherokee
Jul 06, 2009 | 1995 Toyota Previa
Mar 22, 2009 | 1995 Jaguar XJ6
Jun 18, 2008 | Isuzu Trooper Cars & Trucks
170 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: