2008 Gr Cherokee overlander series 5.7 hemi engine. On 3 occassions in the past 3 yrs the jeep has excellerated on its own. Have you heard of this happening before? If so, pls forward info on the cause. Thank you.

sounds like battery. when a car battery dies it is dead wasting time trying to recharge it.. Turn headlights on bright, turn heater blower motor on high watch lights, do the stay bright or start dimming. Try to start car with lights on are the going dim. If the headlights do not remain bright while starting car it is battery.

Have you had the engine control unit scanned for fault codes? Is this oil smoke or fuel?

post code, DTC with scan tool
we cant ever guess codes.
mine a 2008 has like 1000 codes.

2008 jeep cherokee (hemi) engine light its on i brought to fix they change 4 sensor and the converter. After 5 days engine light comes on again, what else can be? im depress about it, after paying almost 2 grand to fix this issue.

Hi Danny, I would have both the vehicle and the remote fob batteries checked and if required, replaced. Cold weather can and does show up problems with batteries. It would also be a good idea to have a diagnostic scan carried out on your vehicle, just to be on the safe side. Regards John

Same issue. 2008 Grand with Hemi. loos like the Driveshaft has to come out but I still do not know if there is enough Wire length to get the wires off with the starter unbolted

flushing a trans is not good because particals from the oil can clog valve body and ruin it--always just drop pan change filter and drain--that lite means theres a bad code-scan truc for free at a parts place and tell me wats happenin

drivers side front of the engine i believe it is on the timing cover but the camshaft tone wheel is on the left side head.

Best bet is to start with an aftemarket performance air intake. (ex-K &N, AEM). Exhaust (flowmaster) is the next step. with those two you should an additional 15 ish horses. next step would a chip module. (ex-hypertech). Additional horses for you.

Intake will give you instant results. Throttle response, air flow, and a better sound
Exhaust. Will sound great. May not notice the performance portion, but needed.
Chip Module. Your biggest expense without getting in big, but will take your jeep to the next level. lets your jeep open up and remove rev limits and such. Fun to play with and works. Don't fall trap to knock offs. You find a whole lot junk like on ebay. Stick to the heavy hitters with this. (Jet/Hypertech to name a couple.)
Check out www.jegs.com to look at some performance parts. There a decent site with a lot to look at. Have fun.