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Discussion Starter #1
I need to understand how the ignition switch interacts with the transmission floor shifter.

The ignition switch interlocks the shifter but it would seem that the shifter interlocks the ignition switch also.

Can the interlock be disabled? How is it done?Is it as simple as removing/cutting the control cable?

My ignition key won't turn & the shifter won't come out of park.

Amazingly, the key works in the ACC position, which leaves me to believe that the key is OK, but the interlock is the problem.
 

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You sure it's not the Ignition Lock. Well, here's alittle info on the lock and shift interlock cable. It's not much but hope it helps you. You may also may need to take your car in for the Recall on the Interlock Cable too.

Ignition Lock Cylinder

REMOVAL & INSTALLATION


The ignition lock cylinder is installed in the end of the housing opposite the ignition switch. The ignition key rotates the ignition lock cylinder to 5 different positions: ACCESSORY, OFF, UNLOCK, ON/RUN, and START.

When replacing the ignition lock cylinder on a vehicle with a column shifter, a new interlock cassette must be installed. If the vehicle has a floor shift, the interlock cable at the floor shifter must be adjusted.

Floor Shifter

Disconnect the negative battery cable.

Remove the tilt lever mounting screw and tilt lever.

Remove the upper and lower steering column covers.

Insert the key and turn to the RUN position. This will cause the lock cylinder retaining tab to depress.

Using a small screwdriver, depress the tab and slide the ignition lock cylinder out from the housing.

To install:

Install the key into the ignition lock cylinder. Turn the key to the RUN position. The retaining tab on the lock cylinder can be depressed using a small screwdriver.

The shaft at the end of the ignition key lock cylinder aligns with the socket in the end of the housing. To ensure proper alignment, the socket must be in the RUN position.

Align the ignition lock cylinder with the grooves in the housing. Slide the cylinder into the housing until the tab sticks through the opening in the housing.

Turn the ignition key to the OFF position. Remove the ignition key.

Adjust the floor shift interlock cable as follows:

Remove the floor shifter handle.

Remove the floor console bezel and loosen the interlock lever adjustment nut.

Install the ignition key and turn it to the RUN position.

Remove interlock cable from the floor shifter housing. Slide the cable out of the groove in the shift interlock lever.

Inspect the interlock cable for the following:

With the ignition key removed and the lock cylinder in the OFF (LOCK) position, the cable core wire should not move when it is pulled. If movement occurs, the cable is installed improperly or it is kinked.

With the ignition key in the RUN position, the cable core wire should slide freely when it is pulled and return to the bottomed out position when it is released. If no movement occurs while in the RUN position, the cable is installed improperly or the wire is kinked.

Place the floor shifter in the PARK position. Slide the cable core wire into the groove on the adjustment lever and be sure that the cable end seats in the groove.

Slip the cable into the housing until it snaps into place. Be sure that the floor shifter remains in the PARK position.

Remove the ignition key (be sure that the switch is in the OFF position).

With the adjustment nut on the interlock lever loosened, the cable should index itself to the correct position. Once this has happened, tighten the adjustment nut to 50 inch lbs. (6 Nm).

Check the interlock adjustment as follows:

With the key in the OFF position, the floor shifter should be locked in the PARK position. If not, re-adjust the interlock and tighten adjustment nut.

Without starting the engine, turn the key to the RUN position. Place the shifter in the Reverse position. The key should not be able to be removed from the lock cylinder. If it can, re-adjust the interlock and tighten the adjustment nut.

Place the floor shifter in the PARK position. Turn the ignition key to the OFF position. The ignition key should be able to be removed. If this is not possible, re-adjust the interlock and tighten the adjustment nut.

Install the bezel on the floor shifter console.

Install the floor shifter handle.

Install the upper and lower steering column covers.

Connect the negative battery cable.

Check the system for proper operation.

Floor Shift Interlock See Figures 5 and 6


Fig. 5: Interlock cable mechanism




Fig. 6: Remove the interlock cable from the shifter housing



Remove the shifter handle.

Remove the console bezel.

Loosen the adjustment nut on the interlock lever.

Move the ignition key to the RUN position.

Remove the interlock cable from the groove housing. Slide the cable out of the groove in the interlock lever.

Inspect the interlock cable. As follows:

With the lock cylinder in OFF (LOCK) position and the ignition key removed, the cable core wire should not move when pulled. If the cable core wire moves, the cable is improperly installed or kinked.

With the ignition key in the RUN position, the cable core wire should slide freely when pulled. Also, the cable should return to the bottom out position when released. If the cable core wire does not move in the RUN position, the cable is improperly installed or kinked.

Place the shifter in the P position.

Slide the interlock cable core wire into the groove on the adjustment lever. Make sure the cable end seats in the groove.

Slip the cable into the housing until it snaps in place.

Ensure that the shift lever remains in PARK. Remove the ignition key from the lock cylinder (switch in OFF position.)

When the adjustment nut on the interlock lever is loosened, the cable indexes itself to the correct position.

Loosen the adjustment nut. Allow the cable to adjust itself to the correct position. Tighten the adjustment nut to 50 inch lbs. (5.5 Nm).

Check the interlock adjustment. As follows:

With the ignition key in the OFF position, the shifter should be locked in P position. If not, re-adjust the interlock and tighten the adjustment nut.

Without starting the engine, place the ignition switch in the RUN position. Move the shifter to the reverse position. You should not be able to remove the ignition key from the lock cylinder. If the key can be removed at this point, re-adjust the interlock and tighten the adjustment nut.

Place the shifter in the P position. Turn the ignition key to the OFF (LOCK) position. You should be able to to remove the ignition key from the lock cylinder. If not, re-adjust the interlock and tighten the adjustment nut.

Install the bezel on the shifter console.

Install the shifter handle.
 

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I just took the shifter bezel out and disconnected the ign. interlock cable. No problems whatsoever going on 2 years, you can shift without a key in the ign. now. Try that cheapest mod ever !!
 

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Discussion Starter #4
I already found that verbage about how to adjust the interlock, but it doesn't actually explain what's going on............

I'd rather disconnect the damn thing, so I'll try that...

THANKS!
 

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Discussion Starter #5
ignition/interlock

Fixed the problem over the weekend.

The problem had nothing to do with the interlock cable, as it was already adjusted so loose that it didn't do anything. I disconnected the cable @ the shifter anyway.

The entire problem was the ignition cylinder, and since it can't be removed without it being in the run position, getting it out was possibly a major problem.

So, I decided to attempt to force the little spring-loader tab that keeps it from being removed. As soon as I started to force the tab, the cylinder started to turn correctly with the key.

I removed the cylinder, and inspection showed that the spring loaded pins that rub/run on the 'detent ring' (don't know what the real name is) were worn so they were VERY rough, causing the assembly to bind. Lubrication made no difference, so I replaced it for $23 after tax.

Except for needing to carry 2 keys around (ignition & doors), all is well.

Thanks for the advice.
 
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