Thermostat: Engine thermostats that are stuck or not opening all the way are a fairly common problem on Jeep vehicles. Other than a check engine light, you might also experience engine overheating or high fuel consumption, depending on the failure mode. 2009 Jeep Patriot Sport 2.4. Join our community to discuss the Jeep Patriot & Jeep Compass. 1. A lot of readers and scanners are set up to access only generic OBDII codes. After 3 weeks the check engine light comes on. Jeep check engine light (CEL) comes on when the On-Board Diagnostic (OBD) system detects a problem with the engine, transmission, or evaporative system. All cars since 1996 have this diagnostic built in funny thing you also need the code reader to shut off the check engine light. Baltimore, Maryland 21224 USA. After pressing "erase/clear" and waiting until you see a "no codes" message, you can turn off … 2. 2008 jeep compass 2.4 Car runs fine, but engine light blinks like a misfire light would. Try this to see if there are any codes. This will cause rough idle, loss of power, and poor throttle response. In some cases, it can even trigger extremely limiting limp home mode. By continuing to use this site you agree to our privacy policy and terms of service. Replacing the throttle body is the only way to solve the issue. Codes: P2112 and P2112 - Throttle Actuator Control System - Stuck Open. If stuck open, this can even cause rough running, misfire, and stalling. In most cases, a carbon buildup within the valve prevents proper operation. June 25, 2013. Preventive engine cleaning enables you to restore engine parts rather than replacing them, thereby saving vehicle owners on costly parts, such as a new turbocharger ($ 1.350 - 3.100), catalytic converter ($ 600 - 2.000), DPF ($ 600 - 2.000) or EGR valve ($ 370 - 500). P0456 code will typically not be accompanied by any noticeable symptoms other than the smell of gas and the service engine soon light. A check engine light can indicate a broad spectrum of problems with your 2012 Jeep Patriot. im not sure if its this but, if you get air in the gasoline tank, mabey the caps not on tight or something, that will cause the check engine light to turn on. Turn the ignition on. To check your Jeep JK Wrangler’s DTC codes, simply insert your key into the ignition, turn it to the ‘ON’ position but do not start the engine. Check engine light is on, but no code on reader. Research those codes to get a better understanding of the problem. DON'T PAY TO HAVE YOUR CODES CHECK OR CLEARED. Learn what your check engine light means without the use of an obd2 scanner or any other fancy garage machines or "computers". The most recently reported issues are listed below. I did the key on/off procedure, it comes up with ----- and the dOne, but no codes. When your Jeep check engine light comes on, it means the onboard diagnostic system has detected a problem with the engine, emission system, and in some cases even the transmission. Your timing chain could have jumped. I think the speedometer is high to when it speeds up. This is a telltale sign of an engine misfire, causing damage to the catalytic converter and other engine components. In both cases, the thermostat should be replaced without delay. Code: P0128 - thermostat not performing properly, EGR Valve: On Jeep engines, EGR related problem is usually caused by a stuck EGR valve. Jeep Patriot P0456 OBDII Code Symptoms. But engine … 2014 Jeep Patriot have the red lightning bolt check engine light on and the traction light on getting the code u0401. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. When I rev the engine the misfire counters go up on 1 and 4. The most common problems that trigger Jeep check engine light to come on are worn spark plugs, bad oxygen sensor or loose gas cap.Â. jeep patriot engine codes; Jeep Patriot. Try CARBON CLEANING ! Another possible issue is that the OBD-II port is damaged. Some models have a Leak Detection Pump, which can go bad. Codes: P0456 - small evap leaks, P1494 - Leak Detection Pump faulty or evap leak. You need an obd2 code reader to find out what that code is. Find answers to all your Jeep Patriot technical questions. I replaced the Intake Manifold Runner Control Valve - Answered by a verified Jeep Mechanic In this article, we cover common problems that trigger the Jeep check engine light to come on, symptoms, and how to read the fault codes yourself with an OBD-II scanner. JavaScript is disabled. Be extra careful if Jeep check engine light is flashing, especially if accompanied by engine shaking and juddering. 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