Question about 2000 Pontiac Grand Prix
My Pontiac is leaking antifreeze under the valve cover, close to the alternator. little black plastic pipe
Replace little black pipe refill coolent to corect level and recheck for leaks
Posted on Dec 30, 2013
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Posted on Jan 02, 2017
SOURCE: 2000 Pontiac Grand Prix
you have what is called a 3800 series II engine the l-shaped tube is for your by-pass in the intake manifold and the by-pass for the heater core. you have to remove the serpentine belt first. then remove the altenator. this will leave the idler pully bracket. remove the 3 bolts they are 15mm heads. now gently pull the bracket away from engine. the L-shaped tubes come in a pack of 2 they are 2 different sizes and can only fit one way. you can buy them for under 5 bucks at Oreilly's. when you install them make sure you use a small amount of white lithium grease on the O-Rings before you attach them to the engine. Install the bolts and tighten to 22 ft lbs. of torque. installl the altenator and the serpentine belt and reconnect the battery. this should solve your problem... please rate this thanks.
Posted on Sep 23, 2008
SOURCE: Antifreeze leak
DO NOT DRIVE THE CAR until this problem is fixed! You could destroy the engine.
Many GM V6 engines of 1995-1999 had defective Upper Intake Manifold (UIM) gaskets (this is especially true for 3800 V6 engines). The antifreeze/coolant (especially orange DEX-Cool) will deteriorate the gasket material over time. If there are abnormal exhaust noises accompanying the leak, and/or the oil appears cloudy (check this immediately), you may have a blown head gasket or Lower Intake Manifold (LIM) gasket. Start with the UIM gasket.
The repair is detailed in the Haynes manual for that car ($17 at NAPA and Carquest), and (DIY) will take 5-8 hours plus a new gasket and RTV sealant (parts should be under $40 for all). A shop will charge $250-350 for this job.
Posted on Oct 08, 2008
SOURCE: Valve cover gasket
valve cover gaskets are in expensive, like 20 bucks, a books that can tell you how to do it would be 25-50 and you will be able to use the book for other things.. there are usually a few long bolts going straight through your valve cover, jus take them off remove the old gasket and put new one in put them back in.. however tightening the valve cover bolts will be the only tricky part.. you may need a torque wrench and have to refer to the book to know exatly how tight they should be.. but as a rule of thumb 80-90 ft-lb of tork is usually used.. be careful when doing this cuz if you put the wrong torque on it will bend your valve covers or posibbly not seal correctly
Posted on Jul 08, 2009
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