Not starting

Tiny
ZOG1974
  • MEMBER
  • 1998 JEEP CHEROKEE
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
For years I have had to wiggle the gear shifter while turning the key to get it to start, now all of a sudden that doesn't work anymore. Does this mean my neutral safety switch is shot? When I turn the key and wiggle the stick I can hear a click but that's all.
Friday, January 18th, 2019 AT 8:49 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi and thanks for using 2CarPros.

Before you do anything, confirm that the battery terminals are clean and tight and in good condition. Also, make sure the battery is good. See link 2 for how to load test the battery.

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

https://www.2carpros.com/articles/car-battery-load-test

See if it will start in neutral rather than park. If it does, then either there is an adjustment issue or the switch is bad. If you still get a click, determine if it is coming from the starter. You may have a bad starter.

If you determine that the switch is bad, here are the directions for replacement. I want to note that it is adjustable. Make sure that isn't the issue.

AW-4 AUTOMATIC TRANSMISSION
REMOVAL
1. Raise vehicle.
2. Disconnect switch wire harness connector.

Park/Neutral Position Switch Removal/Installation
See picture 1

3. Pry washer lock tabs upward and remove switch attaching nut and tabbed washer.
4. Remove switch adjusting bolt.
5. Slide switch off manual valve shaft.

INSTALLATION
1. Disconnect shift linkage rod from shift lever on left side of transmission.
2. Rotate manual shift lever all the way rearward. Then rotate lever forward two detent positions to Neutral.
3. Install switch on manual valve shaft and install switch adjusting bolt finger tight. Do not tighten bolt at this time.
4. Install tabbed washer on manual valve shaft and install switch attaching nut. Tighten nut to 6.9 Nm (61 inch lbs.) torque but do not bend washer lock tabs over nut at this time.

Park/Neutral Position Switch Adjustment
See picture 2

5. Verify that transmission is in Neutral.
6. Rotate switch to align neutral standard line with vertical groove on manual valve shaft.
7. Align switch standard line with groove or flat on manual valve shaft.
8. Tighten switch adjusting bolt to 13 Nm (9 ft. lbs.) torque.
9. Bend at least two washer lock tabs over switch attaching nut to secure it.
10. Connect shift linkage rod to shift lever on left side of case.
11. Connect switch wires to harness and lower vehicle.
12. Check switch operation. Engine should start in Park and Neutral only.

______________________

If that isn't the issue, here is a test for checking the starter:

https://www.2carpros.com/articles/starter-not-working-repair

___________________

Here is a link that shows in general how a starter is replaced:

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

_________________

If you confirm the starter is bad, here are the directions specific to your vehicle for replacement.

STARTER MOTOR REPLACEMENT
REMOVAL
1. Disconnect and isolate the battery negative cable.
2. Raise and support the vehicle.

Starter Remove/Install
See picture 3

3. Disconnect the battery cable and solenoid feed wire from the starter solenoid.
4. Remove the lower starter mounting screw.
5. Remove the upper starter mounting screw and the starter motor.
6. Reverse the removal procedures to install. Tighten the starter hardware as follows:
- Upper mounting screw (rear screw) - 55 N.m (40 ft. lbs.)
- Lower mounting screw (front screw) - 41 N.m (30 ft. lbs.)
- Solenoid battery cable nut - 10 N.m (90 in. lbs.)
- Solenoid terminal nut - 6 N.m (55 in. lbs.).

________________________

Let me know if this helps or if you have other questions.

Take care,
Joe
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Friday, January 18th, 2019 AT 9:32 PM

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