Question about Jeep Grand Cherokee

1 Answer

2003 2.7 grand Cherokee holds in low gear when cold it's an auto box

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 20,706 Answers

2.7? diesel, the engine we dont have,, in USA.
Turbo diesel;?
so what up, ELABORATE please.
WJ JEEP is a USA jeep, in Europe its a WG, jeep, and runs different engines and trans,
yet another post with no country, like most here, and FAILED.
what does holds in low gear mean.?
try to know that engine power and a/t shift points are complex.
means, tell what works and not, pretend the helper is blind
and has no hands nor legs. bingo.?

now my wild guess, based off 2 words.
hold and lowgear.
i guess you are saying the engine runs perfectly with full power.
but the transmission will not auto up shift from 1st gear to 2nd,
is this correct?
if yes,

  1. check transmission fluid levels. do not overfill it, or guess.
  2. check fuses, we test them.
  3. if the trans , fails, now, the Diesel has a special version of the transmission, not petrol box. and most have an external TCM controller, unlike ours, totally. but it must be SCANNED.
  4. or you will never know why failing !
  5. The scans will show errors, telling you why the TCM tranny brain, can not shift, (sensors errors? comm errors/ many...)
  6. there you go, there is more, but illl stop here, the service manual tells you in clear English , all on car checks for tranny. if read.

my WG book, shows even Diesel shift'er module, is unique
and can not communicate, and fail.
and the TCM is controlling all this.

Learn to scan all modern cars first (means 96'+)
and save time, and money.
guessing will not work. sorry.

if you had scanned it and posted errors we could wax 10x more savvy, for sure.
  1. buy a scanner use it. (save big money for life of car)
  2. Get it scanned. (all shops can)
  3. call mobile car service, and they scan it?
  4. tow car to any shop they scan it.
our cars show P07xx codes. for trans or P17xx.
in Europe they have EOBD, (simular to our OBD2, we invented)
so that is your tool, that works. (wild guessing country I am)

here is one example
P1242-CAN BUS MESSAGE MISSING FROM TCM
Test
P07xx
P17xx
P27xx , are all trans errors, lots

this means the PCm can not talk to the TCM box.
if it cant, the the PCm can not send engine load data to it.
or worse.
service manual, WG , chapter 21, covers all this.

Posted on Dec 30, 2016

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Stuck in gear,with check engine light on,took battery of for 1hr,drove ok for 1mile.check engine light back on,stuck in gear.will not shift up or down.if you select low range the auto box will change...


This vehicle is going into "safe mode" get it to a parts store like Orilley's or Pep Boys, they will download the code for free and give you better direction.

Jan 16, 2010 | 2002 Jeep Grand Cherokee

1 Answer

I have a 2003 Jeep Grand Cherokee Overland with automatic climate control. The drivers side blows cold air constantly. It has no heat.


sounds like the blend door motro may be bad, this motor is screwed to heater box, there are a few of these motors one for pass/side for hot/cold air then one to control position of air like defrost or vent or floor, then the driverside cold/hot air, i think this motor is on driverside part of heater box, to make sure locate each motor while moving all controls until you spot the one that doesnt move, then remove it and move door manualy to see if you get heat, then replace that motor, hope this helps,

Dec 26, 2009 | 2003 Jeep Grand Cherokee

1 Answer

Grand cherokee heater blows cold air


Check the coolant level, sounds like you may be slightly low....Be sure heater is on high when filling the system....Look for any air bleeds...

Dec 06, 2009 | 2003 Jeep Grand Cherokee

1 Answer

2003 jeep cherokee, very tight turning lefy


Could be a valving problem in the steering box or a binding ball joint etc. Try jacking it up and see if you can find anything that's binding (usually you can feel roughness or hear some noise in the bad part). You may want to disconnect the steering box at the linkage on the pitman arm to isolate the box from the remainder of the steering gear. I can't offer a "cure" only because there are too many parts to check and any one can be binding. So, instead, I'm telling you what to look at so you can find it.

Nov 27, 2009 | 2003 Jeep Grand Cherokee

1 Answer

The cherokee wont switch gears. Once you put the car on drive and take off it won't switch gears. It stays stuck on the first gear.


did you check for engine or transmission codes? most large auto part stores will do for free call a few and find one who will and they can get codes and give you and idea usually

Jul 09, 2009 | 2003 Jeep Grand Cherokee

1 Answer

2000 jeep grand cherokee laredo hesitates in 2nd gear when cold


Is it manual or auto trans? If manual the gear lube is thicker when cold and the syncronizers tend to stick and not slide free for grind free shifting or for locking into gear.
If Auto trans if the jeep is warmed up setting then cycle the gears before driving. If that helps then the fluid is not getting through the valve body properly. It could be metal in the body or filter or cold seals are letting fluid by til the seals warm, expand and hold pressure. I'm assuming trans fluid is good, not old. One item that can lead to poor cold shift in an auto trans is a bad torque convertor. Since it seems to be a second gear issue the second section of the trans could have a bad seal. In an auto trans I'd take to a shop and have a cold pressure test done. They will tell which one is the problem.

Mar 20, 2009 | 2000 Jeep Grand Cherokee

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

20 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7689 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...