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He said that that'll kick in in a certain way to aid the A/C to keep the air cool inside the cabin when the car is hot. The first day I noticed it, my black Jeep had been in the sun all day, it was at least 95 outside, and I was on the freeway. I noticed the sound seemed to be slightly worse when I was pressing the accelerator pedal. I also noticed that the oil pressure gauge was running slightly lower than normal. He said all of these were signs of a good working car. I have heard the noise twice since then, but have yet to notice any problems with my Jeep as far as performance or handling or faults/failures.
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I have replaced both the water pump and the radiator on my '98 so it is most likely one of those two components.
Diverging for a moment here, I don't understand why manufacturers build SUVs with such small tanks. 300+ hp gas sucking V8, barely any more gas than a Camry, I just don't get it.
Pickup trucks, OTOH, are designed for folks other than soccer Moms, and so they can come equipped with 35 gallong tanks, or a second fuel tank, because they are designed for working...IMHO, and YMMV...
I'd like a fullsize truck with a 600 mile tank some of the time, but I have to drive and park in the city too. Always a compromise.
My guess is that it is a space constraint issue. 20 gallons is a pretty decent size giving adequate range but is still a pretty large tank to package in a midsize SUV.
Pickup trucks tend to have longer wheelbases allowing larger tanks.
You'll need to get under the van with a drop light and look around until you can pinpoint where it is coming from.
My name is Keerit and I am a Marketing Representative with the Jeep Information Center. I’m glad to see that you are doing your research on the 2005 Jeep Grand Cherokee. It’s always refreshing to see consumers taking the effort to make an informed decision on a vehicle. I noticed that you had a couple of questions regarding the fuel efficiency on the 4.7L V8 and the 5.7L HEMI V8 engines available on the 2005 Jeep Grand Cherokee. I can provide you with the EPA’s estimated fuel efficiency ratings for both of these engines. Hopefully this will provide you with a good outlook for what to expect out of the two.
Would it be okay with you if I joined the conversation?
Thanks in advance,
Keerit T.
I have had one issue with this vehicle, but it was a biggie (and covered by warranty). I had to replace the entire rear end last year after 35k miles, including the limited-slip differential. No clear reason why this occurred, but basically all of the bearings wore out and the axles were grinding away into oblivion. Hopefully this is not something that will occur every 35k. I have heard other people describing the same symptoms in the "Problems" forum.
It’s great to see that you are interested in possibly purchasing a new 2005 Jeep Grand Cherokee! I would like to provide you with information regarding the fuel efficiency for the HEMI engine and any other concern(s) that you may have. The 5.7L HEMI V8 engine has an EPA estimated fuel efficiency rating of 14mpg in the city and 21mpg on the highway. A very respectable figure considering the amount of power that this particular engine outputs (330hp @ 5,000rpm). If you happen to have any other questions, I would be more than happy to help.
Keerit T.
Welcome aboard, Keerit! You're already familiar with the Forum's Terms of Use and we look forward to your participation.
tidester, host
I think the 21 MPG highway onthe 5.7L is likely, as I've been seeing about 20 MPG on the highway cruising at 75 MPH with my '05 JGC. I think the MDS makes a difference on the highway, but, my city driving has been piss-poor, about 10 MPG, not even close to the 14 listed using the EPA standards (which is grossly outdated and not reflective of "real world" situations). I hope that helps.
The only time I get poor mileage is when I'm towing in the mountains and then it will drop down to 11-12 mpg.
I wonder if this is at all related to a recall involving earlier model years as noted in this post:
janz, "Jeep Grand Cherokee" #1811, 8 Jun 2004 10:42 am
The NHTSA investigates car fires so you may want to contact them (nhtsa.gov).
Steve, Host
I just bought one.
Maintaining your vehicle at the posted speed limit (I know that sometimes we all tend to run a little late). Observing the speed limit not only saves you money, it can save much more. Trying to remove unnecessarily heavy weight from your vehicle. Excess idling is also a concern; although seemingly harmless, how many miles per gallon do you get while the vehicle is just sitting there? And last, but not least, using your vehicles cruise control system whenever possible. Combining all of these variables together will undoubtedly boost your vehicles overall fuel efficiency. If there are any other questions that you may have, I would be more than happy to help!
Keerit T.
Oncoming wind does play more of a role in affecting fuel mileage for the Jeep Wrangler than it does on the Jeep Grand Cherokee. In this type of scenario, what you must consider is the amount - or velocity - of the wind that the vehicle is driving against. Given the size of the two vehicles and their respective engine sizes, the Grand Cherokee will experience less trouble with windy conditions. And yes, temperature certainly plays a role in your vehicle's overall efficiency. The hotter the outside temperature is, the harder your vehicle has to work to regulate itself. This is relative to placing a glass of water outside: the hotter the temperature, the faster the evaporation rate. Post away with any more concerns :P
Keerit T.
I have commented a few months back - - it still has overall been a pretty good vehicle. Other than 3 seat heaters for the driver and 1 for the passenger needing replacements and a few items (including the full brake replace of course, but only once so far although high speed stops are starting to get "wobbly" again), overall it's been a pretty good vehicle at almost 5 years old.
I also have a 2000 Town and Country van before i made the first payment on it the transmission went out on it $1,300 to fix it. :sick: with 82,000 miles on it.
BEFORE THESE TWO CARS I HAD TWO TOYOTAS' WITH 200,000 MILES ON THEM AND NEVER HAD ANY BIG PROBLEMS WITH THEM. THANK GOD I KEPT ONE OF THEM, OR I WOULDN'T HAVE A WAY TO GET TO WORK TO PAY FOR THE REPAIRS ON THE OTHER TWO!!!!!!!!
Is there anything I need to be aware of before I start? For example, do the calipers come off with a standard socket (or is a special tool required)? Do I need to do anything for the ABS before I push the piston in with a C-clamp (such as loosen a bleeder screw)? Would it be beneficial to spend $20 and register on the Jeep site for access to the on-line service guide? Thanks!
I don't think I've ever bled the brakes when just changing out pads.