Question about 2000 Pontiac Grand Prix

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LEAKING ANTI FREEZE UNDER VALVE COVER

My Pontiac is leaking antifreeze under the valve cover, close to the alternator. little black plastic pipe

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  • Expert
  • 133 Answers

Replace little black pipe refill coolent to corect level and recheck for leaks

Posted on Dec 30, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

keemo68
  • 1263 Answers

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

goofduck
  • 490 Answers

SOURCE: Car is throwing water out thru the pcv hole in the valve cover and now has water mixed with oil in the valve covers. Wat could this be?

the head gasket is blown

Posted on Apr 15, 2009

  • 21 Answers

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

  • 242 Answers

SOURCE: appears antifreeze is leaking under the drivers

Most likely that your heater core is leaking and needs to be replaced. And no a radiator type sealer wont fix it.

Posted on Oct 26, 2009

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1 Answer

Replace valve cover gasket


Most of the Hyundai Vercruz's have a current recall for the valve cover gasket and the alternator. Oils is leaking into the alternator and can cause a fire. Gasket and alternator should be replaced free by a Hyundai dealer under this recall.

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Leaking antifreeze,where do i check to find the leak?No visual leak but anti freeze is leking somewhere.


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My 93 grand am is leaking out the back of the motor somewhere.it only seems to do it while its running and smokes olot.


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Jun 27, 2010 | 1993 Pontiac Grand Am

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2000 3.3 auto grand voyager. got a major coolant leak, to the extent that you can see it weep. Been to Chrysler garage, who said a little is coming from water pump (£275 to replace), but most is...


It must be leaking from under the valve cover. The time for rear valve cover gasket replacement is 2.5hrs and 3hrs for both front and rear, I would replace both at the same time and the gasket.Its advisable to get it done by technician if the coolant is leaking as the coolant is leaking from under the valve cover. Its $300 for parts and services (timing gasket $40, valve cover gasket $140, oil pan gasket set $70, and coolant flush for $50) . ''the timing cover is leaking coolant''--engines water pump is behind the cover and it is failing-. as far as parts and labor it sounds reasonable and it all sounds pretty typical for your vehicle. But still get it confirmed by any other tech before getting it repaired.To confirm the estimate cost. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Jul 05, 2010 | 1997 Pontiac Bonneville

1 Answer

Antifreeze leaking from the front of the car , by where the wheels are. Why is this happening?


Had same recent problem. Leaking anti-freeze near passenger-side under engine. Inspect all hose connections and area around water pump and did not find source of leak. Took car to dealer and they checked and told me it was leaking from timing cover gasket and head gasket. I found the head gasket hard to believe so I went to a trusted mechanic and he did a dye test that found the leak was in fact the timing cover gasket.

Mar 12, 2010 | 2002 Chevrolet Impala

1 Answer

Antifreeze leak only when car cools down


There should be no anti-freeze under the valve covers, just valves, rockers, springs, and oil. If you are getting any antifreeze leaks at the valve cover then you have a cracked head. Since the engine has been pressure tested and has passed, my guess would be that the coolant reservoir is overfilled. Drain it down to the correct level and see if it does it again. If you are getting a strong sweet antifreeze odor when the car is running, you may be in need of a heat core. My PT Cruiser would leak sporadically, and after running a pressure test, it turned out that the 16 pound radiator cap I had on the car was losing pressure at around 8 pounds. so it would only lose antifreeze when it was really hot and/or I was running the AC.

Feb 24, 2009 | 1998 Chevrolet Cavalier

1 Answer

Leaking oil bad


If you're certain it isn't your oil filter, then it can only be three other things. The first (and easiest) thing to check is a small diamond-shaped plate on the side of the block, under the intake manifold, towards the alternator. It has a bolt and a stud in it. Verify that both of those are tight. If they are tight, check the four bolts that secure the "push rod cover" to the side of the engine. The push rod cover runs the length of the engine and is located directly under the intake manifold. This was the culprit of my oil leak, and I imagine it will be yours also. However, if you find that those bolts are tight and no oil can be found leaking from that area, check your valve cover. The Fiero valve covers were stamped from very pliable steel and it is difficult, at best, to get them to seal correctly. Problems usually occur when people torque the bolts too tight and bend the valve cover. I recommend a product called "Indianhead" gasket shellac. Remove the valve cover and ensure all gasket surfaces are clean. Ensure the valve cover's gasket mating surface is straight - straighten with a hammer and block of wood if needed. Follow the directions on the bottle to the letter, making sure to coat your valve cover gasket surface, both sides of your gasket, and the gasket surface on the head.

Aug 02, 2008 | 1984 Pontiac Fiero

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