Take note not to use sub-standard electrical components when replacing. When replacing electrical parts, use only genuine MOPAR parts for best performance and functionality. There is a pin inside your ignition switch that can be responsible for engine stalling without prior warning. One of the parts inside the switch is a metal rod and a link that triggers and sends an electrical signal to your starter motor when cranking.
It then retains the key securely and keeps the connection closed within the switch. So if the ignition switch is not functioning properly, the connection between ignition and fuel systems are cut off, which will cause the engine to stall.
Depending how bad the switch is, the engine might or might not start. A problematic OPDA was an issue on the 4. The factory standard OPDA was designed with two bronze oil bushings, which was separated by an oil seal. The upper bushing is cut off from lubrication by that seal, resulting in premature failure.
Over time, radial movement develops in the shaft. Eventually, the complete assembly and camshaft will fail. You ignore a bad OPDA at your own peril, since failure to replace this relatively inexpensive component will result in lack of sufficient lubrication and eventually catastrophic engine failure.
The repair is a DIY repair for any hands-on type of person without the need for any special tools. A bad battery can cause all sorts of electrical gremlins.
When the battery is weak, it has very low cranking power and amps. A weak battery also means extra hard work for your alternator to try and charge the battery and keep the engine running.
Stalling, no-start, and shut-down conditions are ongoing concerns for Jeep Cherokee and Jeep Grand Cherokee owners. Skip to content. By Lauren C. Martin, Esq. Website developed in accordance with Web Content Accessibility Guidelines 2. If you encounter any issues while using this site, please contact us: An inconsistently firing ignition will result in an easily stalled engine. When your Jeep is stopped and idling the engines throttle body valve is closed not allowing air into the engine.
The air enters the engine through the idle air control valve which opens or closes depending on temperature, altitude etc to ensure the car idles well. This reduces Nitrous Oxide emissions. If your EGR valve is clogged or gummed up it can cause it to stay stuck open or closed, wreaking havoc on your fuel economy or even causing your car to stall when you come to a stop.
The EGR valve can be cleaned with carb cleaner which will get it back to good condition if it is down. If it is defective it will have to be replaced. The crankshaft position sensor monitors the position or rotational speed of a crankshaft within an engine.
It can work in conjunction with a camshaft sensor to monitor the relationship between the piston and the valves in the engine. The throttle position sensor senses the position of the foot pedal in the vehicle.
Jeeps are known to have a problem with the camshaft position sensor. The pistons in an internal combustion engine act as plungers sucking oxygen through the intake manifold into the cylinders. Some engines take advantage of the Vacuum at the intake manifold to power engine accessories.
Rubber hoses are used to connect the accessories to the intake manifold. These hoses can develop cracks which leak. When these cracks leak, excess oxygen is allowed into the intake manifold which can cause problems with idling possibly causing your Jeep to stall. Brake Booster - www. The brake boosters on some Jeeps are known to develop internal vacuum leaks which can cause your vehicle to stall at idle.
Troubleshoot the brake booster: To troubleshoot the brake booster disconnect the big vacuum hose running to it and plug it off securely and some way. Start the Jeep and see if the problem goes away.
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