The most common symptom of a bad or failing 5.7 hemi crankshaft position sensor is facing difficulties starting the vehicle or not being able to start at all. As the job of a crankshaft position sensor is to monitor the crankshaft’s speed and position, and other parameters, while starting the engine, it has a vital role to play.
Worst 2008 Jeep Grand Cherokee Problems #1: Electronic Throttle Control And Engine Check Lights On 2008 Grand Cherokee Average Cost to Fix: $5,100 Average Mileage: 93,000 mi. Learn More
jeepgcoman. Yes, there are problems with the valve seats (mostly intakes), primarily on the early 5.7's. I have two of them..05 Hemi LX and 06 Hemi WK and, after reading soooo many of the horror stories (from $5000-10000 for new engines/installation), I decided to be proactive and change the seats (and other stuff since the heads were off
2012 Grand Cherokee 5.7 Hemi. In Feb 2022 My jeep was running rough, I had Check Engine Lgt, Lightening Bold and a bunch of codes, most relating to Throttle Body and Acc Pedal. Sometimes I would lose power while driving, But I could pull over and wait a couple of minutes, then start back up and drive normal. Sometimes it would not start until
Wash the engine, radiator, underside completely, then add the dye and drive a bit. Check in a darkened garage or with a blanket over the hood to make it a bit easier to see even small amounts of dye. If all else fails, pressure test it--with dye. If still nothing, compression test all cylinders for a gasket leak. A.
Also 05 5.7 Magnum modded the same as Jeep and, Recently Sold, 06 300CSRT8, Comp. Cam, 85 mm TB, HP tuned engine/trans, Foose custom wheels. Replaced with 2021 Tesla Model S Plaid with 1020 hp and 1050 lb. ft. of torque, 9.30 at 148 mph quarter mile in Plaid Mode. Welcome to the forum. Sorry to hear of your problem.
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jeep grand cherokee 5.7 hemi problems
