Replacing waterpump on '94 3.8L - Ford Mustang Forum

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post #1 of 4 (permalink) Old 07-23-2010 Thread Starter
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Question Replacing waterpump on '94 3.8L

Sorry in advance as I could not find all the information I was looking for. I am replacing the waterpump on my sons '94 and while I have read I either need a PS pump pulley puller (got one from Autozone) or I can unbolt the entire bracket, what else will "get" me. I am replacing all the hoses, including the three small "pre-formed" heater and bypass hoses and the thermostat. I also got a new o-ring for the metal heater hose tube that "plugs" into the waterpump. The one on the car now looks like it in addition to a o-ring someone (or the factory) added addition sealant that looks like black Permatex. The current pump has been leaking out of either the pump gasket or one of the pump attachment bolts/studs..

So any hints, tricks or "heads up" would be great.


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post #2 of 4 (permalink) Old 07-23-2010
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When I changed mine, I just bolted off the pump, when unbolted the pully. Bolted the new pump to the engine, and then bolted the pully back on. Then put on the lower hose and belt and was done with it.

Of course added coolant.

It's bolt off, then bolt on.

-1995 Conv V6 H/C/I and all bolt ons
-1994 Coupe V6 built by GSS Motorsports, painted by Allen Skaggs (Flawless Customs)
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post #3 of 4 (permalink) Old 07-26-2010
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Only thing I would add is that it might be easier to break the pulley bolts free while everthing is still on the car. That way, you can push on the belt tensioner to create friction on the pulley and loosen the pulley bolts. But that's just a suggestion... Other than that, the Norse King is correct (LOL - just had to make a nickname for ya ) -- bolt off, bolt on.

Sidetrack: NorStang, your the owner of "Project Frostbite" from GSS Motorsports, aren't you?!? I noticed a while back, but never mentioned it... You gotta load up some pics, cuz I wanna see what they did to your ride.

FLASH = 98 V6, chrome yellow, black & blue accents, 146k daily driver
POWER: divorced exhaust with glasspacks; BBK CAI, TB, UDPs; (shift kit in the garage)
STYLE: black headlights, black taillights, black grille, black hood pins, black window tint, blue hood & side scoops, blue billet fuel door, interior billet, 12000k HIDs
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post #4 of 4 (permalink) Old 07-26-2010
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he has a whole thread on another forum i asked about it and thats what i got sent to lol..

2003 3.8L V6 4R70W
Windstar Upper Intake with cool-air intake, MAC LT headers, BBK O/R H-pipe, and flow 40s, SCT tuner, FRPP Alum. D/S, 3.73 gears, Auburn HP limited slip, and Team Z LCAs, Eibach sway bars.
Best 1/4 time: 15.036 @90.92mph, 2.148 60'
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