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16K views 11 replies 7 participants last post by  CadillacJack76  
#1 ·
Just noticed a slight antifreeze leak ,looks like its coming from the front of the motor (drivers side) Any ideas as to what might be leaking.Is the water pump on that side. Or any hoses that might have come a bit lose.
I was just checking my Haynes service book and it looks like a special tool is required to remove the pump, is it necessary to have these tools
 
#3 ·
There are several places on the driver's end of the engine which can develop a coolant leak. Including w/p seals. Yes, it takes a special keyed socket to remove the pump, turning CLOCKWISE, with a decent sized (long) socket handle. The pump body locks into a keyed recess with pretty good force. The socket costs around $25 at parts stores, although some will rent one for a day or so. Be sure you have the seals on hand, and make sure the belt tensioner pulley is smooth, quiet, and straight (true).

You might as well do a complete DEXCOOL coolant change if you pull the pump. Follow the GM recommendations for your year and engine.

Do a search for water pump replacement. Thousands of words, pictures, tips in here and N* threads.

Dump the Haynes manual and spend the $135 for a real, 2 volume, Helm Manual from GM. Address in your owner's manual.
 
#5 ·
I just had my newly aquired 2002 deville at a dealer having the transmission fluid changed.
The tech pointed out a possible crossover gasket leak while it was up on the lift. The evidence of the leak was pink colored deposite on the heads of bolts on the left side. He differentiated this leak from a water pump in that a water pump leak is much futher forward.
I changed the coolant two weeks before and added the pills. I will be keeping an eye on things to see if the pills will seal this leak up! I hope this leak does not bite me! I never heard of a crossover leak until this.

Blue_Eldo
72 Eldo Conv, 90.5 Allante, 96 deville, 2002 deville
 
#8 ·
Incidentally that's the rear of the engine not the front.
 
#11 ·
LOL I agree. The N* is especially confusing because there are belt driven accessories on both side. :confused: