Question about 1988 Isuzu Trooper 2 Door
I have a 1988 trooper with a 4 cyl. when I first start the motor I have great oil pressure but after it warms up to operating temp it drops to nothing what can I do to fix this problem
This engine is only the 4ZE1 2.6L EFI in the USA spec-models. The engine will run for a very long time with proper maintenance. Oil pressure falling only after warm-up indicates that the oil, when cold, is thick enough to make the pressure sending unit sense the oil. When it heats up the sending unit may not detect it as the oil thins out. The sending unit is what makes the gauge give an indicator its signal.
I would check the sending unit first, as your concern does not indicate a clattering engine or other problem. This model engine has a circuit that shorts the ignition to ground and kills the engine if the oil pressure ACTUALLY falls below a set minimum. Indicators of this problem are a loud clattering in the engine, as well an engine that will start and then stall for no reason.
Posted on Oct 09, 2010
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:
Mar 06, 2015 | 2000 Isuzu Trooper
Jun 08, 2014 | 1991 Isuzu Trooper
Jan 16, 2013 | 2004 Ford Super Duty F 550
Aug 30, 2017 | 1991 Isuzu Trooper
Apr 03, 2011 | 1997 GMC Sonoma
Dec 28, 2010 | 2000 Isuzu Trooper
Oct 15, 2010 | 1997 Chevrolet S-10 Pickup
Dec 30, 2009 | 1996 Isuzu Trooper
Oct 18, 2009 | 1988 Isuzu Trooper 2 Door
May 17, 2009 | 1999 Isuzu Trooper
369 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: