How does the idle work on a 1998 Jeep Cherokee?
The idle on the 1998 Jeep Cherokee is controlled by an idle air control valve. This part works with the vehicle’s main internal computer to regulate the air and idle speed of the engine.
Where is the throttle body on a 1998 Jeep Cherokee?
If that doesn’t work, you can replace the part to regulate the idle speed once again. Open the hood of your 1998 Jeep Cherokee. Find the throttle body straight back from the A/C compressor, to the left of the fuel injector and to the immediate right of the air intake temperature sensor on the engine block.
What can I use to clean the idle valve on my Jeep Cherokee?
Use only aerosol carburetor cleaner on the valve parts — not on the sensors or anything else around the engine area. Put the idle valve back in place, start the Cherokee and see if this has rectified the problem. If not, take the valve off again and proceed to the next step.
Where is the knock sensor on a Jeep Cherokee?
Fig. 11: Sync Pulse Signal Generator Operation Courtesy of Chrysler Motors. The knock sensor is located on the lower left side of the engine block just above the oil pan. See Fig. 12. The knock sensor provides an input to the ECU, indicating detonation (knock) during engine operation.
How can I tell if my idle control valve is working?
To check if an idle control valve is working properly, start by turning on your engine and letting it run for a minute or 2. Then, when it’s at an idling speed, take note of the RPMs in your car. Next, turn the engine off and disconnect the idle control motor under your hood.
What does a fuse on a Jeep Cherokee do?
Fuse box diagram (fuse layout), location, and assignment of fuses and relays Jeep Cherokee XJ (1984, 1985, 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996). A fuse is an element for protecting the electrical system. A fuse will trip (i.e. it will blow) in the event of a failure or improper interventions in the electrical system.
What happens when the idle control motor is disconnected?
With the Idle Control Motor disconnected, get back into the vehicle and start the engine again. The engine should still start and run without any issue despite the idle control motor being disconnected. Be sure to tuck the wiring you disconnected up in the engine bay so it doesn’t get caught in any moving parts.
When to replace idle control motor in Ford?
Fords are designed to operate with the resistance in the solenoid in a range between 7.0 to 13.0 ohms. If the resistance is outside that range, the idle control motor needs to be replaced.
How to clean an idle air control valve Jeep Cherokee?
In this video I am removing, cleaning and re-installing the idle air control valve (IAC valve, IAC sensor) on my Jeep Cherokee. If you’re having rough idle or some stalling issues, a dirty or faulty IAC valve is one possible cause for this problem. Loading…
What does an idle air control valve do?
A Jeep Cherokee idle air control valve from AutoZone closely monitors your engine’s air intake and optimizes your ride wherever you drive. Our aftermarket idle air control valve for Jeep Cherokee improves your response time by closely monitoring the amount of air entering your engine.
What is the idle air control on a Jeep Cherokee?
Cherokee’s no-limits power delivers precision on the highway and power on the trail, but a capable engine requires the right amount of air. A Jeep Cherokee idle air control valve from AutoZone closely monitors your engine’s air intake and optimizes your ride wherever you drive.
A Jeep Cherokee idle air control valve from AutoZone closely monitors your engine’s air intake and optimizes your ride wherever you drive. Our aftermarket idle air control valve for Jeep Cherokee improves your response time by closely monitoring the amount of air entering your engine.
Why do you need an IAC valve on a Jeep Cherokee?
A high-quality Cherokee IAC valve eliminates any existing dirt clogs and prevents your engine from taking in too much fuel. A proper air-fuel ratio keeps your RPM from dropping and your Jeep from backfiring, and an engine that breathes easier lasts longer, too.
Where can I buy Mopar idle air control valve?
Ships from and sold by Original Auto Parts Xpress. . . . . FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details Amazon Business : For business-only pricing, quantity discounts and FREE Shipping. Register a free business account Manufacturer’s warranty can be requested from customer service.
What causes a Jeep Grand Cherokee to misfire?
If a coil pack goes bad, it’ll cause a misfire and rough idle condition. Really, your Grand Cherokee will be running rougher at any RPM, but a misfire will be most pronounced at idle.
Why is my Jeep Grand Cherokee running rough?
Really, your Grand Cherokee will be running rougher at any RPM, but a misfire will be most pronounced at idle. Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Grand Cherokee happens to have them, they can go bad and cause a rough idle.
Why does my Jeep Grand Cherokee shake when I idle?
Fouled plugs can cause a misfire, which in turn causes an idle shake. Spark Plugs – One of the absolute most common causes (if not the most common reason that your Grand Cherokee may be shaking) is the spark plugs. Although most modern vehicles use iridium spark plugs, they still need to be changed at the manufacturers recommended interval.
The idle on the 1998 Jeep Cherokee is controlled by an idle air control valve. This part works with the vehicle’s main internal computer to regulate the air and idle speed of the engine.
If a coil pack goes bad, it’ll cause a misfire and rough idle condition. Really, your Grand Cherokee will be running rougher at any RPM, but a misfire will be most pronounced at idle.
Really, your Grand Cherokee will be running rougher at any RPM, but a misfire will be most pronounced at idle. Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Grand Cherokee happens to have them, they can go bad and cause a rough idle.
Use only aerosol carburetor cleaner on the valve parts — not on the sensors or anything else around the engine area. Put the idle valve back in place, start the Cherokee and see if this has rectified the problem. If not, take the valve off again and proceed to the next step.
To check if an idle control valve is working properly, start by turning on your engine and letting it run for a minute or 2. Then, when it’s at an idling speed, take note of the RPMs in your car. Next, turn the engine off and disconnect the idle control motor under your hood.
Is there an idle air control valve for the Jeep Grand Cherokee?
Select your Year, Make, Model and Engine to find those that fit your vehicle. When your SUV backfires or suddenly slows down, you’re likely not getting the right amount of air. The Jeep Grand Cherokee idle air control valve from AutoZone is custom-built for your signature ride.
If that doesn’t work, you can replace the part to regulate the idle speed once again. Open the hood of your 1998 Jeep Cherokee. Find the throttle body straight back from the A/C compressor, to the left of the fuel injector and to the immediate right of the air intake temperature sensor on the engine block.
How do you remove idle air control valve?
Grab the oval electrical connector that is connected to the idle air control valve and pull it away from the valve to disconnect it. Use a Phillips head screwdriver to remove the two screws that hold the valve in place. Use a rubber mallet to tap the valve body loose from its position.
Where is the Check Engine light on a Jeep Grand Cherokee?
In Jeep Grand Cherokees, the port is usually found under the steering wheel, near the driver’s side door. After reading the code and diagnosing and fixing the problem, the user can select an option on the scanner to clear all diagnostic codes, which should reset the check engine light.
Where is the E-Fan on a Jeep Cherokee?
The e-fan is on the same side of the engine compartment as the intake/exhaust manifolds and fuel rail and injectors. When the engine is shut-off, the e-fan time delay will cause the fan to blow air over the manifolds and out the back end of the engine compartment and will prevent the fuel rail and injectors from getting quite so hot.