Topic: Jeep Grand - loss of power / auto gears not changing up ? Help ! (Read 8033 times)

bunnykins · « **on:** March 09, 2010, 11:28:23 PM »

just started to notice this last week, whilst driving, when you brake at the lights and you let go, the car
tends to move forward, but it seems very slow to move on and needs alot of pedal power to get moving

yesterday was towing our horse and going is fine, car auto box changes up over 50mph to 1.5k revs normal,
but going home this did not happen and the revs were about 1 k higher then normal on all speeds, idles ok.
[ as if the overdrive button is turned on ] but car not changing up. also near home coming to lights, found the
same thing happening, loss of power and needs alot of pedal to get moving.

any ideas ? anyone had this before ?

thks

p/s - seems to be when the jeep is full of passengers or when towing / could it be an intermittent fault somewhere ?

Bishops Finger · « **Reply #1 on:** March 09, 2010, 11:49:39 PM »

Tis an odd one mate

Hopefully a post Mac event Doc may have ideas...

BF

scrw · « **Reply #2 on:** March 10, 2010, 08:01:34 AM »

is the autobox fluid level ok?

Bubba · « **Reply #3 on:** March 10, 2010, 12:13:15 PM »

yup check the leval and see if fliud does not smel burnts scorched

charger · « **Reply #4 on:** March 10, 2010, 01:48:14 PM »

When my brake caliper jammed I had a loss of power & it wouldn't change into 4th gear.

bunnykins · « **Reply #5 on:** March 10, 2010, 09:55:40 PM »

where do i check this ? [ autobox fluid level ] - good idea.
haven't checked any fuilds for over 2 years apart from engine oil ! also would know where to start checking the others.

also where can you see if the caliper is jamming ? or can kwit fit check this for me ?

thank you

scrw · « **Reply #6 on:** March 10, 2010, 10:51:31 PM »

up by the drivers bulkhead, on a 4 litre the autobox dipstick is next to the engine oil one, needs to be chacked with the gearbox warm & the box in N

Sticking caliper, jack up each wheel and rotate (brakes off of course) any tight spots should show up

bunnykins · « **Reply #7 on:** March 11, 2010, 10:01:28 AM »

thats all good stuff, thank you all

will check it out at weekend

bunnykins · « **Reply #8 on:** March 13, 2010, 02:49:46 PM »

right i started the jeep and left it running and i checked the transmission oil dipstick....................and there was just a blob of oil on the dipstick !!
is this how you check it ? another question........where do i top up the oil ?? i had a good look around and could not see anything, do you top it up
pouring the oil in the dipstick hole ? ?

if i did not start the jeep and check the dipstick...........it is at the max level. [ with jeep not running ] so does that mean it is ok ?

how long on idle before i check the level ?

confused ?!? lol

Mike Pavelin · « **Reply #9 on:** March 13, 2010, 02:57:51 PM »

Check it hot (and that means drive it for half an hour) and running in neutral or park on a level surface. Top up through the dipstick tube with ATF+4 not Dexron or Mercon

bunnykins · « **Reply #10 on:** March 13, 2010, 03:24:10 PM »

Quote from: Mike Pavelin on March 13, 2010, 02:57:51 PM

Check it hot (and that means drive it for half an hour) and running in neutral or park on a level surface. Top up through the dipstick tube with ATF+4 not Dexron or Mercon

i bought castrol ATF TQ D111 is this ok ? so if i run it hot, do i top up whilst the engine is running or turn engine off ? thks

Mike Pavelin · « **Reply #11 on:** March 13, 2010, 05:56:25 PM »

No you need Mopar ATF+4 or equivalent, you've bought Dexron III. Add fluid with engine off.

bunnykins · « **Reply #12 on:** March 13, 2010, 10:16:20 PM »

Quote from: Mike Pavelin on March 13, 2010, 05:56:25 PM

No you need Mopar ATF+4 or equivalent, you've bought Dexron III. Add fluid with engine off.

guess halfords dont stock that as i bought the dexron, is mopar only available from jeep dealers ? or online ?

thanks for your help.

gazjeep · « **Reply #13 on:** March 14, 2010, 01:19:11 PM »

Only Jeep dealers I think

Bubba · « **Reply #14 on:** March 14, 2010, 06:11:13 PM »

sounds a load arse to me

bunnykins · « **Reply #15 on:** March 15, 2010, 11:01:42 AM »

Quote from: V8 Bubba on March 14, 2010, 06:11:13 PM

sounds a load arse to me

??

Bubba · « **Reply #16 on:** March 15, 2010, 10:51:09 PM »

o sorry i was just commenting on the fluids some manufacturers insist it must be our grade this or whatever they say

bunnykins · « **Reply #17 on:** March 19, 2010, 02:59:19 PM »

i have put in nearly 3/4 ltr of fluid. - as i was pouring it in and checking it after starting the jeep and in neutral the level dont seem to be going up.
jeep is warmed up and checked level when engine is hot and in neutral with engine running - its at the min level.
turned engine off and checked the level is at max level
is this correct ?

also what axil fuild do i need to top up with on the diffs and is there a step by step instructions here of how to clean the cover ?

also is the rubber stopper on a dealer supply ?

thanks.

tim_aka_tim · « **Reply #18 on:** March 19, 2010, 03:20:02 PM »

Look here for all your fluid needs..... http://www.birtydastards.com/frm/index.php?topic=8091.0

It's a sticky at the top of the tech issues forum.

Bishops Finger · « **Reply #19 on:** March 19, 2010, 10:31:33 PM »

Think me rubber stopper has issues...

bunnykins · « **Reply #20 on:** March 20, 2010, 11:46:36 PM »

is it alright to use this to top up the transfer case ?

Mopar ATF+4 or equivalent or Dexron III

can it be used on the axles front and rear [ is this called differentials ? ] or is that a different oil ?

thanks

gazjeep · « **Reply #21 on:** March 21, 2010, 12:30:37 AM »

ZG Grand Cherokee '96-'98
Engine oil, 2.5L diesel 7.2 10W40 or 15W40 semi synthetic engine oil
Engine oil, 4.0L 5.7 10W40 or 15W40 semi synthetic engine oil
Manual transmission 3.3 4874468 API 75W90 GL3 gear oil
Auto transmission 3.8 05013457AA Mopar ATF+4 or equivalent synthetic ATF
Auto transmission '98 M/Y 5.0 05013457AA Mopar ATF+4 or equivalent synthetic ATF
Transfer case 231 1.2 05010124AA Mopar 7176 or Dexron II equivalent
Transfer case 249 1.4 05010124AA Mopar 7176 or Dexron II equivalent
Front axle 1.2 4874468 API 75W90 GL5 gear oil
Rear axle* 1.4 4874468 API 75W90 GL5 gear oil
*Use additive 04318060AB
with Trac-Lok differential

bunnykins · « **Reply #22 on:** March 21, 2010, 10:11:29 AM »

Quote from: gazjeep on March 21, 2010, 12:30:37 AM

ZG Grand Cherokee '96-'98
Engine oil, 2.5L diesel 7.2 10W40 or 15W40 semi synthetic engine oil
Engine oil, 4.0L 5.7 10W40 or 15W40 semi synthetic engine oil
Manual transmission 3.3 4874468 API 75W90 GL3 gear oil
Auto transmission 3.8 05013457AA Mopar ATF+4 or equivalent synthetic ATF
Auto transmission '98 M/Y 5.0 05013457AA Mopar ATF+4 or equivalent synthetic ATF
Transfer case 231 1.2 05010124AA Mopar 7176 or Dexron II equivalent
Transfer case 249 1.4 05010124AA Mopar 7176 or Dexron II equivalent
Front axle 1.2 4874468 API 75W90 GL5 gear oil
Rear axle* 1.4 4874468 API 75W90 GL5 gear oil
*Use additive 04318060AB
with Trac-Lok differential

"i bought castrol ATF TQ D111" is this ok for the transfer case ?

gazjeep · « **Reply #23 on:** March 21, 2010, 11:24:28 AM »

I think you can use Dexron 3 instead of 2 but not the other way round.

Best wait for a proper techy to answer you to be 100%

Mike Pavelin · « **Reply #24 on:** March 21, 2010, 08:07:42 PM »

Yes you can substitute DIII

Author Topic: Jeep Grand - loss of power / auto gears not changing up ? Help ! (Read 8033 times)

bunnykins

Bishops Finger

scrw

charger

bunnykins

scrw

bunnykins

bunnykins

Mike Pavelin

bunnykins

Mike Pavelin

bunnykins

bunnykins

bunnykins

Bishops Finger

bunnykins

bunnykins

Mike Pavelin