Hemitick is normal, and what you're probably experiencing on the highway is the MDS system kicking on and off. 265/70-17 BFGoodrich All-Terrain T/A KO, 2" lift, JK Wrangler Moab wheels, Spidertrax Spacers, Rola Roof Rack. C. cheef0216 Discussion starter. 102 posts · Joined 2009. ThaSaint I have a 2006 Jeep Grand Cherokee Laredo with 80k+ miles. (Bought it used at 29k miles). I have been experiencing random electrical problems. The symptom is that the all the lights and gauges on the dash cluster go on and off erratically and sometimes stay off for a few minutes. Thelabor and all cost about $500. Several days later, the light came on again. Frustrated with the dealer, I went to a well regarded independent shop. The same code was coming up. They replaced the intake manifold and gasket. This came to about $400. Fast forward a few days to now. The Check Engine light is back on.
57-liter V8 HEMI (2005-2008) 330 hp / 375 lb-ft torque. The 5.7-Liter V-8 HEMI engine that powers the 2005-2008 Jeep Grand Cherokee uses aluminum cylinder heads with hemispherical combustion chambers, creating outstanding airflow leading to high power and torque. The engine produces 330 hp (246 kW) @5000 rpm and 375 lb-ft (502 N•m)
Offroad or desert driving. If equipped for and operated with E-85 (ethanol) fuel. Grand Cherokee WK maintenance schedules. Maintenance schedule Grand Cherokee (North America) – PDF file. Maintenance schedule 1590posts · Joined 2014. #3 · Mar 10, 2022. Anything that affects the fuel to air ratio will trigger a fuel trim issue. It could be as simple as a clogged exhaust system. It could be exhaust manifold broken bolts. It could be a partially stuck open EGR valve. It could be a partially stuck open EVAP purge valve, etc.
2006Grand Cherokee Overland PCM issues. Our Grand Cherokee (with 108,000 miles) is showing a CEL indicating and oil pressure sensor issue. It has been replaced with both
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    • 2006 jeep grand cherokee 5.7 hemi problems