Question about 1999 Jeep Cherokee

2 Answers

Trasmission range sensor 1999 jeep cherokee

This year for our 1999 Jeep Cherokee Sport has been just one thing after another... and it may be the same unresolved issue. A year ago, it was having issues starting so we replaced the starter. 6 months after that the crank sensor had to be replace due to a combo of not always starting and then the dreaded "no bus" error. 3 months later, we begin having issues again, and the mechanic said it was the starter, AGAIN. So, we replaced that and start having issues again the very next day- we called the mechanic and they said they felt it was going to be the starter AGAIN! After one day!!! We took the original starter they made us replace just a few days before to autozone and it turns out the starter was absolutely fine- it works and they made us pay $400 to replace it!!! THEN, two days later the check engine light came on and the code says its a trasmission range sensor 1999 issue. I am losing my mind... any clues?

Posted by on

Ad

2 Answers

Thunder is the man. He is 100% on. Now if we could only get the dealers to listen to him, every vehicle owner would have a driveable vehicle, at least til the next issue surfaces. I will add that doing voltage drops before you spread your Jeep all over the driveway cleaning what he said, may point you to where to go look at first.

Posted on Oct 01, 2009

Ad
  • 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
  • 6,982 Answers

No bus issue is caused by a lack of connection between the computer and sensors or dash gauges. It can also be triggered by a low power condition related to electrical connections at the power supply side of the computer. (or poor grounding at dash, firewall or fenders.) The starter issue likely is related but only in that power may be getting lost between the battery and the starter as it passes through the power distribution center. That could cause the starter relay to not operate intermittently.
Sometimes it is also related to the crank sensor but since that was replaced I'd be more concerned with the connector integrity there.
This sounds like a lot to check because it is.
Corrosion on low voltage connectors is not as easily identified as is the crud that grows on your battery terminals. Minor oxidation can appear as just a blackening of the pins or pin receivers. You should use electrical contact cleaner, not sandpaper or other abrasives in cleaning as most are plated with a non-corrosive and sandpaper etc may clean but render them more prone to further corrosion.
If you need to, remove the power distribution center and clean it from the back-side. You may also need to remove the dash gauges and clean the connectors there. I'd begin by cleaning all connectors in the engine bay including the computer, both male and female ends on all, and running a permanent ground from the battery through the firewall to the dash brace at it's bottom edge and making sure the computer grounds are clean and secure. after that, go to the more difficult items and do the same testing, removal and cleaning there as well.
Hopefully, you will not need to go through everything I've noted before you find the problem, and hopefully when you are finished the problem will be resolved. Unfortunately, there are so many different causes, I can't give you one specific item to just replace...that's why shops get driven crazy when a problem like this appears. And for most, working on stuff like this does not make a profit...If all billable hours were charged, it would cost several thousand dollars for time spent alone!!!
Good luck!!!

Posted on Sep 30, 2009

  • rocknlalo Jul 02, 2011

    Hey PCZap, I"m having similar problems with my brothers 99 jeep cherokee sport. No bus error, dash guages stop working the come back, intermitten no starts, I've replace bettery, battery terminals. a few months back I replaced alternator. removed started took to autozone it checked out fine...my brother swears it's the fuel pump, I don't think it is. I've tried the on/ off 5 second key cyling test to prime the pump and it still wont start.there's fuel pressure at injector rail. I'ved taken starter off cleand connection and I will start fine for a couple weeks then do it again when we least expect it. Did you ever find the problem with your jeep. I'm going to clean all conectors and check grounds like thundergod suggested.

  • Richard Scordino Jul 03, 2011

    As you may have noted, I gave this person everything I could short of going there and doing the work for him....yet he rated my answer "thanks for trying" which lowers my rating!!! Doing a thorough electrical test can sometimes take ten minutes or two days, "pinning out" every wire in the system 'till you find the culprit. (the two day ones aren't any fun). If you need to do that, get a good wiring diagram and a note pad. Take good notes as you work and compare what you find to what the diagram tells you. After a time you will get a clear picture of what's happening and then a solution. If you don't take notes, by the time you're half finished you may forget something that in itself seemed insignificant but added to other things, begins to make sense. About grounds...there are about five grounds sometimes more. On every vehicle I get, I run a ground wire (one continuous unbroken lead (12 gauge or better) to every ground point on the car...on a boat, it's called "bonding"...that ensures that there is always a good solid ground to everything. That in itself, lowers resistance to all components and prevents many failures.

×

Ad

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

What controls the fuel mixture when engine is idling?


It could be a number of things, if it's injected then it could be fuel rail pressure sensor, or it could be air flow sensor or it could be O2 sensor, have a mechanic diagnose it

Aug 30, 2014 | 1999 Jeep Cherokee 4WD

1 Answer

1999 jeep cherokee sport stalls and bucks while driving


you need code scan vechicle if check engine light is turning on.many things cause vechicle surge while driving like faulty tps sensor, faulty mass air flow sensor.clogged fuel filter,faulty egr valve, faulty torque converter clutch solenoid. best code scan vechicle save time and money from guessing.

Nov 06, 2011 | 1999 Jeep Cherokee

1 Answer

99 Jeep Cherokee Sport, 4.0L -won't start


you need to have it connected to an OBD2 machine and watch if you are missing the cam sensor showing RPMs
or if your missing crank sensors RPMs,
it could be a wiring problem or computer if your seeing the RPMs from both sensors,and the last thing i would check is hooking up a fuel gauge to the reed valve and watch what fuel pressure you have while cranking,if the cam sensor is the culprit it will turn the fuel off after the cranking.

Jan 11, 2010 | 1999 Jeep Cherokee

1 Answer

1999 jeep cherokee sport it wont start cranks but wont fire


Figures...I'd use 2&3 as b&c Open reading means that with the meter set to ohms and turned on, the meter should read the same connected to the terminals as it did before you connected it.

Oct 29, 2009 | 1999 Jeep Cherokee

1 Answer

I am trying to find out where the transmission relay circuit is on my 1999 jeep grand cherokee limited. also what does code P1768 stand for and how do I solve this problem?


About Jeep Grand Cherokee 1999-2004, also called WJ, you must review this information, is in spanish language, but can hel yo:
- Jeep-WJ-2002-Cherokee-Service-Manual-PDF-08W-Diagrama-de-Cableado
* Electrical Distribution Center in 8W 10-2 Page 24 / Transmission Relay
* Trasmission Relay Descriiption in 8W 10-8 Page 30 / Diesel & Gas
* Control Transmission System in 8W 31 Page 167 and next.

Hope this help you.

Aug 06, 2009 | 1993 Jeep Grand Cherokee

1 Answer

1993 jeep cherokee sport 4.0,engine quits running when the clutch


bad distributors were common for this as well as o2 sensor

Jul 22, 2009 | 1999 Jeep Cherokee

1 Answer

1999 Jeep Sport will not start


It could be your Crank Shaft Sensor. That's what it was on my 99 Cherokee Sport the first time that happened.

Apr 20, 2009 | 1999 Jeep Cherokee

1 Answer

1999 cherokee sport 4.0L engine is same as any 97-01 4.0L?


USE THE INTAKE AND EXHUT MONIFUL FROM THE 1999 IS OK

Apr 17, 2009 | Jeep Cherokee Cars & Trucks

1 Answer

2 problems with 1999 jeep cherokee sport 4x4


ox. sensor no. 1 check exhaust pipe below exhast manifold

Oct 05, 2008 | 1999 Jeep Cherokee

Not finding what you are looking for?
1999 Jeep Cherokee Logo

173 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

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

Answer questions

Manuals & User Guides

Loading...