The 1988 Jeep Wrangler Intake Manifold is a vital part of your vehicle’s engine. It is responsible for supplying air to the cylinders, and it also helps to cool the engine by directing airflow over the cooling fins on the cylinder heads. The intake manifold can become damaged or cracked over time, which can cause engine performance issues.
If you suspect that your Jeep Wrangler’s intake manifold is damaged, it is important to have it inspected by a qualified mechanic as soon as possible.
If you’re looking for a replacement intake manifold for your 1988 Jeep Wrangler, you’ve come to the right place. Here at 4 Wheel Parts, we carry a wide selection of parts and accessories for Jeeps of all years and models. Whether you need a new manifold for your 2.5L engine or something else entirely, we have what you’re looking for.
In addition to our great selection, we also offer unbeatable prices on all of our Jeep parts and accessories. So if you’re in the market for a new intake manifold or any other Jeep part or accessory, be sure to shop with us first!
Replacing Exhaust Manifold On 89 Jeep Wrangler
1989 Jeep Wrangler Intake Manifold
If your Jeep Wrangler is equipped with a 4.2-liter engine, then it likely has an intake manifold similar to the one pictured here. This particular model was introduced in 1989 and used on Jeep Wranglers until 1991, when it was replaced by an updated design. The primary function of an intake manifold is to provide a smooth transition for air as it enters the engine.
That air then mixes with fuel in the cylinders and is combusted to create power. The smoother the transition, the more efficient the engine can be. This particular intake manifold was cast out of aluminum and featured 16 individual runners that fed into 8 cylinder heads.
It was a pretty sophisticated design for its time and helped wring every bit of power possible out of the 4.2-liter engine.
What is an Intake Manifold And What Does It Do
An intake manifold is an important engine component that directs airflow into the cylinders. It is responsible for distributing the air-fuel mixture to each cylinder, and it also plays a role in exhaust gas recirculation and throttle body function. The intake manifold can be made of plastic, aluminum, or cast iron.
The primary function of the intake manifold is to evenly distribute the air-fuel mixture to each cylinder. This mixture is then compressed by the piston and ignited by the spark plug, which creates power that drives the engine. The intake manifold also helps to regulate exhaust gas recirculation and throttle body function.
Why Did Jeep Change the Design of the Wrangler’S Intake Manifold in 1988
In 1988, Jeep changed the design of the Wrangler’s intake manifold in order to improve engine performance. The new design was more efficient and allowed for more airflow into the engine. This helped to increase power and torque, while also improving fuel economy.
How Do I Identify Which Type of Intake Manifold is on My Wrangler
If you’re not sure which intake manifold is on your Wrangler, there are a few ways to identify it. One way is to look at the casting number on the manifold. The casting number is usually located on the top of the manifold near the front.
Jeep used two different manifolds on the Wrangler; one was made by Weiand and one was made by Edelbrock. The Weiand manifold has a casting number of 6751460, while the Edelbrock casting number is 3721. Another way to tell which manifold you have is by looking at the shape of the runners.
The Weiand manifold has longer, more tapered runners, while the Edelbrock has shorter, rounder runners. Finally, you can also tell by looking at how many bolts hold down each carburetor. The Weiand uses four bolts per carb, while the Edelbrock uses two bolts per carb.
Can I Upgrade to a Newer Style Intake Manifold on My Older Wrangler
If you have an older Jeep Wrangler and are looking to upgrade your intake manifold, there are a few things to keep in mind. While newer style intake manifolds may offer some benefits, compatibility is always the first concern. Depending on the model year of your Wrangler, as well as the engine size and type, there could be some difficulty in finding a compatible replacement.
Another thing to consider is that even if you do find a compatible replacement, the installation process could be more involved than simply swapping out parts. Older Jeep Wranglers often had carburetors, which required a different type of intake manifold altogether. If your Wrangler has fuel injection, then the new intake manifold will need to be properly calibrated to work with the rest of the system.
All in all, upgrading to a newer style intake manifold on an older Jeep Wrangler can be done, but it’s important to do your research beforehand and be prepared for a possibly more complicated install process.
What are Some Common Problems With Jeep Wrangler Intake Manifolds
One common problem with Jeep Wrangler intake manifolds is cracking. This can happen for a number of reasons, including improper installation, using the wrong type of gasket, or over-tightening the bolts. If your manifold cracks, it will leak engine coolant and cause your engine to overheat.
Another problem that can occur is carbon buildup on the intake valves. This can cause your engine to run lean and eventually lead to engine damage.
The 1988 Jeep Wrangler came with a few different engine options. The most common was the 4.2 liter inline six-cylinder engine. This engine used a carburetor and had an intake manifold that was made of cast iron.
There were also two other engines available for the Wrangler in 1988. These were the 4.0 liter inline six-cylinder engine and the 5.9 liter V8 engine. Both of these engines used fuel injection and had aluminum intake manifolds.