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Ignition Switch Replacement
 
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Pelican Technical Article:

Ignition Switch Replacement

Steve Vernon

Time:

2 hours2 hrs

Tab:

$110

Talent:

***

Tools:

Philips head screwdriver

Applicable Models:

Porsche 944 (1983-89)
Porsche 944 S2 (1989-91)
Porsche 944 Turbo (1986-89)
Porsche 944S (1987-88)

Parts Required:

Ignition switch

Hot Tip:

Get the shortest screwdriver you can

Performance Gain:

Working ignition switch

Complementary Modification:

Clean everything you have access to with the cluster out

The ignition switches on the Porsche 944 and 951 are made up of three components: the housing, the switch and the tumbler. The switch is the most common to fail. While none of the components are easy to replace you can replace the switch without removing the housing from the steering shaft.

Begin by disconnecting the ground cable from the post on the battery.
Figure 1

Begin by disconnecting the ground cable from the post on the battery. This is also a good time to check the condition of the terminal and wiring, as our cable is starting to get a little corrosion (red arrow).

You will need to remove the steering wheel to remove the instrument cluster.
Figure 2

You will need to remove the steering wheel to remove the instrument cluster. Please see our article on steering wheel removal for additional information.

Use a stubby Philips head screwdriver and remove the five screws holding the instrument cluster surround in place (red arrows).
Figure 3

Use a stubby Philips head screwdriver and remove the five screws holding the instrument cluster surround in place (red arrows).

Use a longer handled Philips head screwdriver and remove the three screws that you access through the vents (red arrows).
Figure 4

Use a longer handled Philips head screwdriver and remove the three screws that you access through the vents (red arrows).

Carefully remove the surround so you do not crack it.
Figure 5

Carefully remove the surround so you do not crack it. This is especially important if you have a dash cover, which our project car did.

With the surround removed, use a Philips head screwdriver and remove the four screws holding the cluster in place (red arrow).
Figure 6

With the surround removed, use a Philips head screwdriver and remove the four screws holding the cluster in place (red arrow).

Carefully wiggle the cluster out from the dash.
Figure 7

Carefully wiggle the cluster out from the dash. You will have to pull one end out to remove the wiring connection. Our cluster had three connections. The connections are held in place by hock tabs. Push the tabs out and the connections will separate (red arrows).

With one side removed you can get easier access to the other connections.
Figure 8

With one side removed you can get easier access to the other connections. Make sure to label the connectors so you will not mix them up.

With the cluster removed you can get access to the switch, which is located on the rear of the ignition housing inside the opening for the instrument cluster (red arrow).
Figure 9

With the cluster removed you can get access to the switch, which is located on the rear of the ignition housing inside the opening for the instrument cluster (red arrow).

Reach in and wiggle the electrical connection straight back off the rear of the switch (red arrow).
Figure 10

Reach in and wiggle the electrical connection straight back off the rear of the switch (red arrow).

With a very short screwdriver you can access and remove the two Philips head screws holding the electrical switch portion to the ignition housing (red arrows).
Figure 11

With a very short screwdriver you can access and remove the two Philips head screws holding the electrical switch portion to the ignition housing (red arrows). Use a small mirror first to make sure the screw types. While it is a very tight fit the screws should not be in place with much torque.

With the screws removed you can remove the switch from the housing.
Figure 12

With the screws removed you can remove the switch from the housing. There is an X cut out in the rear of the switch that sits in the rear of the tumbler section (red arrow). The switch can only be installed in one position. This is accomplished by the locating pin on the rear of the switch. Installation is the reverse of removal.

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