Jeep Grand Cherokee Questions & Answers (page 2 of 6)

Depends on your drawbar weight, but usually uograded suspension is a smart investment for regular or long distance towing

Depends on your drawbar weight, but usually upgraded suspension is a smart investment for regular or long distance towing

I have only had diesel models, but, a friend of mine has the 4 litre and tells me that having spent nearly all his wifes fortune in garage bills, he finally replaced the coil pack as there was nothing left to replace and that fixed the persistent miss fire

I was very happy with mine. It didn’t give me any trouble. Just regular maintenance and that’s it. Just be careful if you’re buying one nearing 100k on the clock as the transmission needs a major service then. It’s not so big a job, but the parts are woefully expensive. The oil is about $50 a litre and you’ll need around 5-8 litres. But the oil pan ( which houses the filter ) is about $800 at Jeep. I paid about $180 for an aftermarket one at the local parts store.
If the service has not been done, the dealer will want over $2000 to do it. My tip, buy the aftermarket oil pan and get the oil in from the USA via eBay and go to your local auto transmission place and see if they’ll do justvthe labour. Dont skimp on the transmission fluid - it’s the ZF LIFEGUARD 8 - don’t use anything else.
Better still, make sure that the 96km major service has been completed at the dealer - saves the hassle. Otherwise, knock the price down.
Oh, and the transmission should shift as smooth as silk. Any clunkiness is a red flag.

if you buy diesel. gearbox is 8hp70 made in Germany by ZF. petrol model has 8hp45 made in USA by Chrysler under zf license. those petrol models have many transmission problems. I never heard problem s on diesel model . yes like the other answer you will need trans service at 100 to 120k. but good news is you can buy genuine oil and sump under $500 shipped from these guys from UK. https://www.onestopgearboxshop.com/products/zf-8hp70-automatic-transmission-gearbox-filter-fluid-service-kit-with-8l-of-oil.

to answer your question. I have laredo diesel 5.5 year 115k. no major issue. apart from alternator failure at 4.5 year out of warranty. But jeep fixed it ffor free.

I’m not sure about the diesel because I had a V8 petrol and it was pretty thirsty around town. I averaged close to 20L/100km around town and about 10l/100km on the highway. I got a maximum of about 750km on the highway cycle. Also, 2012 model will have the 5 speed auto. Mine had the 8 speed - which may also make a difference.

I haven’t replaced the oil cooler?

http://www.caravanersforum.com/viewtopic.php?f=106&t=17882&sid=058d5e6018638c5dbf7cef27e7f53101

over 400 pages. it should help.

sounds like the module this happens to mine

There is a safety cut out which prevents the vehicle from moving/being driven if the coolant level in the resivour is bellow a certain level.

Hi Zippo. We always leave our lights on automatic when towing the caravan, and have never had any problems. Have you checked your caravan's wiring harness closely at the towbar? We had an experience where the harness had tangled with the coupling mechanism on tight parking turns, severing some of the wires but not necessarily the plastic insulation which coated them. There have also been times with earlier vans where the male side of the 12-pin socket was too compressed on some lights, and needed widening quite simply with a small flat screwdriver. Anyway, if either of checks don't solve it, it might be worth testing with an alternate tow vehicle to see whether it's a caravan wiring problem or the Jeep. The latter seems unlikely.

Thank you for your response. Have done all of the above and also rang Jeep to ask the question. they suggested as the van is a 2003 to check the globes on the running lights as the may be drawing too much. on doing that we have renewed the globes with LED and renewed the number plate lights completely. all seems ok at the moment will see how it goes on the next trip.

Hi David check the front tailshaft rear cv joint very common for grease to come out. If ok check transfer box oil.

Call or take it to an authorised dealer workshop..

Hi Happy check settings, driving aids, on your radio screen monitor ? Also should say in your manual.

Thank you (tony) all good now the carpost said same,,, yours.(happy).

Hi Anne, if they won't fix it, have a mechanic take the pump out and clean it out with carby cleaner and replace the fluid with new fluid. The brushes wear down and the carbon powder circulates and sticks to the circuitry causing shorts. Cleaning the carbon off often fixes it. It's about 2 hours work all up

Hi Anne, Check the government recall site www.recall.gov.au I just read about that problem with the alternator causing the power steering pump to fail. You need to check if the recall was done on your car. Cheers Ken

Hi Anne with ref to electric pump failing. Leaked fluid or just stopped working.
Contact jeep Australia and complain. If vehicle serviced with main dealer ask for good wil.

Hi Craig. i currently have a 2009 jeep grand Cherokee diesel with 170, 000 k on it and it has been the best car i have ever had, i live in Tasmania and it has done mutable trips to Queensland towing a 3.0 tonne caravan, and it has been faultless, the merc engine is something special, never uses a drop of oil. i get it serviced every 10,000 k.average fuel consumption without the van is 9.1 liters per 100 and with the van is 13.9 per 100. excellent ride great vision, i normally get around 50,000 km from a set of tyres. this is my second jeep, first was a 2006 model with same engine, that one had over 200,000 k on it when i sold it and again no problems .i will defiantly go for one that was built before 2011, good luck Mario
.

Thanks Mario,
Appreciate your input.
Have a great day.
Craig T

Hi Franko check to see if you have had the fuel pump relay recall modification. free from jeep ring your dealer to check.