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Electric Fan and Shroud Replacement
 
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Pelican Technical Article:

Electric Fan and Shroud Replacement

Steve Vernon

Time:

1 hour1 hr

Tab:

$400 to $1,000

Talent:

**

Tools:

10mm socket, flathead screwdriver, floor jack, jack stands, wheel chocks, safety glasses

Applicable Models:

Porsche 944 Turbo (1986-89)

Parts Required:

Fans

Hot Tip:

Have patience, as it is a tight fit

Performance Gain:

Proper cooling of the engine

Complementary Modification:

Flush cooling system

Removing the fan and shroud for the 951 is not a simple, quick and easy task, if you do not have at least three hours to perform the work the first time you attempt it, you should not start as it may take you every minute of it. Unlike a lot of other cars, where the fan and shroud simply slip in and out, once disconnected the Turbo 944 is a little more involved. That being said, it is easily doable if you take your time and follow these steps.

The fan and shrouds are going to come out the bottom, so you will need to safely raise and support your Porsche. Please see our article on safely raising and supporting your vehicle for further information. Remove the engine under tray.

Believe it or not, you will need to drain the radiator fluid. If the fluid is fresh, store it in a clean container and reinstall it after you are finished. Please see our article on coolant flush and bleeding the cooling system for additional assistance.

There are three 10mm bolts that hold the fan support or shroud to the top of the radiator.
Figure 1

There are three 10mm bolts that hold the fan support or shroud to the top of the radiator. Depending on the tools you own and how small your hands are, you may be able to remove them without removing the air box. The tricky one is the one in the center below the lock (red arrow). If you can get this one out without removing the box you will be fine. If you need to remove the air box, please see our article on air box removal for additional assistance.

This photo illustrates the location of the three 10mm bolts you will need to remove (red arrows).
Figure 2

This photo illustrates the location of the three 10mm bolts you will need to remove (red arrows).

Move under the vehicle and disconnect the plugs (yellow arrows) from both fans and clip the wiring as needed (red arrow).
Figure 3

Move under the vehicle and disconnect the plugs (yellow arrows) from both fans and clip the wiring as needed (red arrow).

The plugs on the fans just pull straight back and off (red arrow).
Figure 4

The plugs on the fans just pull straight back and off (red arrow).

Use a 10mm socket or wrench and remove the three bolts along the bottom of the shroud (red arrows).
Figure 5

Use a 10mm socket or wrench and remove the three bolts along the bottom of the shroud (red arrows).

Use a flathead screwdriver and remove the lower radiator hose (red arrow).
Figure 6

Use a flathead screwdriver and remove the lower radiator hose (red arrow). Even though you have drained the coolant, be prepared for a little to spill out.

The hard lines for the oil cooler will interfere with the shroud and fan removal.
Figure 7

The hard lines for the oil cooler will interfere with the shroud and fan removal. You do NOT need to disconnect the lines. Just use a 10mm wrench and remove the two mounting bolts (red arrows).

With the bolts removed let the cooler hang by the lines (red arrow).
Figure 8

With the bolts removed let the cooler hang by the lines (red arrow).

With everything out of the way, you can lift the bottom edge of the fan shroud (red arrow) up and out from the lower radiator tray.
Figure 9

With everything out of the way, you can lift the bottom edge of the fan shroud (red arrow) up and out from the lower radiator tray. The fans and shroud will slip right out the bottom. They are a little heavy, so be prepared. Installation is the reverse of removal.

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