Jeep Compass Stuck Glow Plug Warning Light Fix Guide

Had similar symptoms on a 2014 Jeep Cherokee diesel last winter. The constant preheat light and check engine warning pointed to faulty glow plugs, which caused engine misfire issues during cold starts. The repair involved replacing two defective glow plugs and the glow plug control module. This was a serious issue since faulty glow plugs can affect proper engine combustion and potentially damage other components if left unaddressed. The diesel engine relies heavily on these components for proper starting and running conditions, especially in cold weather. The diagnosis showed carbon buildup was preventing proper glow plug operation. The repair required specialized diagnostic equipment to identify which specific glow plugs were failing. After replacement, the diesel car started perfectly and both warning lights cleared. Would suggest getting this checked soon, as continuing to run with faulty glow plugs can lead to starting problems and poor fuel combustion. The repair itself is straightforward for an experienced technician with the right diagnostic tools.

Thanks for sharing your experience. I had almost identical problems with my 2012 Compass, the glow plugs were causing trouble during cold starts and really impacting fuel efficiency. Got it fixed about 6 months ago and the engine runs much smoother now. Would you mind sharing roughly what the repair cost was for you? Just curious how it compares. Also wondering if youve had any other issues pop up since getting the glow plugs replaced? My check engine light occasionally flickers but goes away on its own.

After seeing a mechanic for the glow plug failure on my Cherokee, the diagnosis and repair cost came to 440 Euro total. Since the fix, the engine starts reliably even in cold weather, and I havent experienced any rough idle issues like before. The occasional check engine light flicker you mentioned could be worth monitoring. In my case, the new glow plugs completely resolved all warning lights and significantly improved fuel efficiency. The engine combustion is noticeably smoother, especially during cold starts. If your light keeps coming on intermittently, it might be worth having the diagnostic codes checked, just to ensure theres no developing issues with the repair work or other systems.

After getting similar feedback from other diesel car owners, I finally took my Compass to a trusted mechanic recommended by a. The total repair came to 520 Euro, which included replacing three faulty glow plugs and cleaning the fourth one. The mechanic showed me the old glow plugs, and they were completely worn out. The repair took about 3 hours, and the difference was noticeable right away. Cold starts are much smoother now, and my fuel efficiency has improved significantly. The check engine light hasnt come back on since the fix. Looking back, I should have addressed this sooner instead of worrying about workshop costs. The peace of mind from having a properly functioning diesel engine was worth the investment. No more stressful cold starts or warning lights to worry about.