Where is the throttle position sensor located on a 2004 Jeep Grand Cherokee?
On the Jeep Grand Cherokee, the TPS is located on top of the engine on the driver’s side of the intake manifold. It is held in place by two Torx screws.
What happens when your throttle body is dirty?
When the throttle body is dirty, clogged up or malfunctioning this stops the flow of air into the engine, which not only causes problems with performance, but can cause issues with unburned fuel passing through the exhaust system.
How to diagnose a jeep throttle position sensor?
Locate the connector that goes from the ECM (engine control module) to the TPS and disconnect it from the TPS. There are usually three prongs; the center prong is normally the negative connector. Take the volt meter and connect the negative side (usually the black wire) to the ground terminal on the battery.
Why does my car idle at 700 rpm?
There is an air filter which prevents debris from the air from getting into the chamber. But if this air filter is dirty or clogged, then there will be less clean air passing through it. This will cause the engine to idle rough. Your engine should normally get to around 700 RPM after you start the vehicle.
How does the throttle body work in a car?
When the throttle body is working correctly, it is synchronized with the fuel intake and the accelerator pedal. Put the pedal down and the flow of fuel is increased into the engine and the throttle body pulls in extra air to aid combustion, allowing your vehicle to perform at the best level and run smoothly.
What does it mean when your car throttles up while driving?
In these cases, the TPS isn’t providing the right input, the onboard computer cannot direct the engine to work properly. When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator.
What happens when the throttle position sensor fails?
The throttle position sensor can fail in several ways, all of which result in poor fuel economy at best, and performance limitations that may create safety hazard for you and other motorists at worst. This sensor can fail gradually, or all at once. In most cases, the Check Engine Light is illuminated if a TPS failure is detected.
What causes a car to have a rough idle?
The causes of rough idle “slightly” overlap the problem areas cited above but there are lots of additional causes such as faulty fuel and ignition system components and, of course, mechanical problems such as uneven cylinder compression, burnt valves and so forth.