Where is the fuel filter on a 1990 Jeep Wrangler?
So to summarize this all up. Up to 1990 the filter will be located under the hood near the carburetor. Years 1991 and up will be just behind the drivers rear wheel.
How to replace fuel pump relay in Jeep Wrangler?
Connect a jumper wire to relay terminal 86 position, connect opposite end to 12V power source. This activates the relay, a distinctive “click” can be heard or felt: Going to replace the fuel pump relay with a new one. Hopefully I can find one that doesn’t look different and fits, this will be my 4th attempt.
How to troubleshoot a bad fuel injector in a Jeep Wrangler?
TIP 1: The engine in your 4.0L Jeep Cherokee (Grand Cherokee, Wrangler) needs to be at operating temperature to get an accurate snapshot of the condition of the fuel injectors. TIP 2: If your Jeep doesn’t start, you don’t have to worry about performing the test with a warmed up engine.
Where are the fuse panels on a Jeep Wrangler?
Here you will find fuse box diagrams of Jeep Wrangler 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994 and 1995, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
How does the auto shutdown relay on a Jeep Wrangler work?
Have to take some wire, wire either coil (85 or 86) to ground and carefully touch the other cool to 12v. If it clicks, it works. Ive never seen one burn out at the 30 coil. All it does is switch whatever polarity is wired to 30, to either 87 or 87a. Then probe the coil wired at the harness.
How does fuel injection work on a Jeep Wrangler?
Enter the 1991 YJ. Though it is almost identical to earlier YJ Wranglers the engine were instead fed with fuel injection. Fuel injection works much the same as a carburetor. Its design is to combine fuel and air and deliver it to the engine.
Here you will find fuse box diagrams of Jeep Wrangler 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994 and 1995, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
When did the YJ Wrangler first come out?
The YJ Wrangler was first introduced in 1987. It was available with either a 2.5 Liter inline-4 cylinder, or a 4.0-liter inline six, and from the years 1987 through 1990 both were provided with fuel by a carburetor. If you’re not familiar with a carburetor, it’s nothing really intimidating.
Is the YJ Wrangler the same as a carburetor?
But carbs do have some ailments. As the 80s found its place in the history books, so did the carburetor (on modern production vehicles at least.) Enter the 1991 YJ. Though it is almost identical to earlier YJ Wranglers the engine were instead fed with fuel injection. Fuel injection works much the same as a carburetor.