Question about 2003 Pontiac Bonneville

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Anti Freeze leak, Intake manifold

There is a leak coming from the intake manifold on the passenger side of the 3800, V6 Pontiac 2003 Bonneville engine. There is a black rubber covered tube that is has a 90 degree bend that goes from the intake manifold to a small pump??? that is in the serpentine belt configuration. It is leaking at the manifold only when the engine is ambient temperature. Stops when it is hot (operating temperature). It starts leaking 4-5 hrs. after the car is used. Dealer put on a new black plastic plenum that sits on top of this alunimun intake manifold. That had nothing to do with it!!! Now it is worse 3 days after he worked on it. I used Bar's Leak b4 I took it in. That stopped it from leaking over the engine to the floor. What is this black covered tube? and what needs to be replaced/fixed?? Thank you for your help!! Dave
dpligda@salsgiver.com

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SOURCE: I have the crappy Fireturd intake manifold issue...possible blown engine

selecting replacement engines- check for 5yr-50000 warranty, not knowing location, two known- spokane, wa. sacramento, ca. there are mail order establishment that offer these, just make sure of warranty cover replacement labor fort total time warranty is in time, also make sure that, if a problem is not cured, they will supply replacement engine-labor. remember it is your dollars, you should be in control

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ndguy2481
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SOURCE: Overheating 97 V6 pontiac grand am

1 Inspect Cooling System Mix Coolant level low or flow is restricted. grey_line.gif 2 Inspect Belt Incorrectly routed, adjusted, tensioned, missing, or worn water pump belt(s). grey_line.gif 3 Inspect Oil Pan Gasket - Performance Ruptured, cracked or leaking radiator hose. grey_line.gif 4 Inspect Radiator Cap Worn or damaged radiator cap grey_line.gif 5 Inspect Thermostat Thermostat stuck closed grey_line.gif 6 Inspect Fan Blade Broken, missing, or defective fan blade(s). grey_line.gif 8 Inspect Water Pump Damaged, worn or leaking water pump. grey_line.gif 9 Inspect Intake Manifold Plenum - Perform Leaking water pump gasket. grey_line.gif 10 Inspect Cooling Fan Control Faulty cooling fan control or circuit. grey_line.gif 11 Inspect Cooling Fan Switch - Radiator Faulty radiator cooling fan switch or circuit. grey_line.gif 12 Inspect Engine Temperature Sensor Faulty engine temperature sensor or circuit. grey_line.gif 13 Inspect Temperature Switch Damaged or faulty temperature switch or temperature switch circuit. grey_line.gif 14 Inspect Fan Clutch Worn, loose or faulty fan clutch. grey_line.gif 15 Inspect Ported Vacuum Switch Damaged, leaking, or faulty ported vacuum switch. grey_line.gif 16 Inspect Radiator Obstructed radiator core or radiator cooling fins. grey_line.gif 17 Inspect Head Gasket - Performance Head gasket leaking coolant into cylinders

Posted on Dec 01, 2008

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SOURCE: gm dex-cool vs prestone anti-freeze...

yes,your guy is right,a lot of gm cars have the int. gasket problem because of dex.

Posted on Feb 23, 2009

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SOURCE: need diagram how to install serpitine belt on 1997 pontiac bonneville se 3800

8th digit of your vin# needed. Is it an "L", "C" or "K" ?

Posted on May 26, 2009

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