Question about 1999 Pontiac Grand Am GT

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I got a 1999 Pontiac Grand Am GT. Something is squeeking around the power steering pump. I replaced all the idler pulleys, the belt tensioner, and the belt twice. don't know if I should replace the pump or press on a new pulley?

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My 1999 grand am is running real bad the engine light keep coming on and then the car always trying to stop on me when I am on the road we sprayed stuff on the carberayter but stil runs bad.can u please me.

Posted on Oct 17, 2013

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Posted on Jan 02, 2017

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SOURCE: Serpentine belt tensioner pulley adjustment

If this is an ac car you will need to get the correct belt and retreive a routing diagram from autzone or the manual. sometimes the pulleys are different for ac versus non ac and you may have to remove an idler to run the belt

Posted on May 23, 2009

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SOURCE: Squeal under hood 2000 Pontiac Grand Prix GT (3.8 L)

I would start with a belt. While removing it feel how much tension the tensioner has on it, on the 3800 egnine they have a stiff tensioner(sorry I don't have any specs for how much) After you get the belt off you can look at all of the pulleys and spin them to see if the bind or look for stuff stuck in the grooves on the pulleys.
It sounds to me like the belt is streched. I would not recommend one of those gator back belts, they seem to make more noise sooner than a good v notch belt. But thats just my opinion!

Posted on Oct 25, 2009

  • 87 Answers

SOURCE: 1997 Pontiac Serpentine belt tensioner pulley wore

Using a socket and breaker bar take the tension off of the belt so you can set it aside. Then take the retainer bolt off that's holding the pulley. If it is a center bolt they are some times threaded backwards (check the direction you pulled when releaving the tension and go the other way). Replace the pulley, replace the belt and job done.

Posted on Nov 13, 2009

  • 454 Answers

SOURCE: On a 2002 Grand Prix, have a serpentine belt and

serpentione belt sounds as if it is stretched. first try to reseat serpentine belt. if still a problem then go buy new belt at autozone. also buy some belt dressing. this should fix the problem. if this doesnt solve then you need to buy a new idler arm. relatively easy fix.

Posted on Feb 01, 2010

cda2z
  • 120 Answers

SOURCE: belt routing diagram 1999 pontiac grand an gt v6

i belive this is the same as a 96 ? which has an auto tensioner towards bottom of engine towards rear of engine

Posted on Jul 16, 2010

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Belt replacement 2003 ml500


It is fairly straightforward on the M113 V8s. I can't remember if that automatic tensioner has the 15mm socket spot on it just under the tensioner pulley or not. The tensioner is located on the driver-side lower but next to the power steering pump pulley. Move it from YOUR right to left, when facing the engine and remove the belt. Put the new belt on starting at the crank pulley. The rib side routes all the way around the idler pulley-from the crank shaft, Power steering pulley, top guide/idler pulley and then alternator on the lower right(passenger-side). The back or smooth side goes around the tensioner and water pump.fan pulley. I hope that helps.

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The power steering pump is dead center on the top of the motor. If your standing on the passenger side the water pump is the next pulley to the right. The serpentine belt will go over the power steering pulley, under the water pump pulley, and then around the a/c compressor.

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I need a belt diagram for a Mercury Grand Marquis 4.6L V8 engine 2006


SECTION 303-05: Accessory Drive 2006 Crown Victoria/Grand Marquis Workshop Manual DESCRIPTION AND OPERATION Procedure revision date: 03/18/2008 Accessory Drive adobe.gif Printable View (104 KB) The accessory drive system:
  • has a single serpentine accessory drive belt with 6 ribs.
  • has an idler pulley.
  • has an automatic drive belt tensioner.
  • is not adjustable.
The accessory drive system provides power to operate components which power other systems. These could include components such as the generator, power steering pump and A/C compressor. Each of these components is equipped with a pulley which is driven by the accessory drive belt. The accessory drive belt is driven by the engine crankshaft pulley. One or more idler pulleys may be provided to facilitate belt routing and alignment. The automatic belt tensioner maintains correct belt tension and compensates for component wear and changes in system load. System load changes can be caused by the A/C compressor clutch engaging or disengaging, or demand changes on other systems powered by the accessory drive belt. To maintain correct operation of this system, it is critical that the correct length drive belt be installed. The pulleys must also be correctly aligned and kept clean.
Accessory Drive Belt Routing
n0037351.jpg
Item Part Number Description 1 8678 Accessory drive belt idler pulley 2 10344 Generator pulley 3 8620 Accessory drive belt 4 3A733 Power steering pump pulley 5 6312 Crankshaft pulley 6 8509 Coolant pump pulley 7 2E884 A/C clutch pulley 8 6B209 Accessory drive belt tensioner pulley Belt Tensioner
Automatic tensioners are calibrated to provide the correct amount of tension to the belt for a given accessory drive system. Unless a spring or damping band within the tensioner assembly breaks, or some other mechanical part of the tensioner fails, there is no need to check the tensioner for correct tension.

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I HAVE A SQEAKING NOISE COMING FROM THE PULLEY UNDER THE ALTERNATOR IN MY 1999 PONTIAC GRAND PRIX 3.8L


This could be the belt slipping or a bearing going/gone in your alternator, air conditioner, steering pump, idler pulley or water pump.

Dec 26, 2010 | 1999 Pontiac Grand Prix

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My 1998 Caravan has a bad squeek in the belt system. Have replaced tensioner pully twice, replaced idler pully and bearings, replaced cerpentine belt twice, replaced alternator twice, went back to...


Without the belt do all the pulleys turn easy. Power steering, water pump, alternator, and tensioner pulley. There is probably only one way the belt will stay on but make sure you have the smooth side to the smooth pulley and the grooved side to the grooved pulleys. See if any of the pulleys have and wiggle in them.

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Which pulley is the water pump on a grand am 2003, Car has a really bad squeeking problem and believe its the water pump.


Water pump should not squeek,even if its going bad. It may be your Idler or tensioner pully.If you look at the pullies and see where the belt has beed running and were it is running now,it may tell you the one you want to replace.If you can't tell that way you can remove the belt and spin them by hand.Had a car once thought it was the Alt. but ended up just being the belt.Well good luck and hope you figure it out.

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2 valve




3186cf9.gif
Item Part Number Description 1 8679 Belt idler pulley 2 10344 Generator pulley 3 8620 Drive belt 4 3A733 Power steering pump pulley 5 6312 Crankshaft pulley 6 8509 Water pump pulley 7 2E884 A/C clutch pulley 8 6B209 Drive belt tensioner pulley
------------------------------------------------------------------------
4 valve

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Item Part Number Description 1 19A216 Belt idler pulley 2 10300 Generator clutch pulley 3 8620 Drive belt 4 3A733 Power steering pump pulley 5 6316 Crankshaft pulley 6 8A528 Water pump pulley 7 19D692 A/C clutch pulley 8 6B209 Drive belt tensioner pulley 9 19A216 Belt idler pulley

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Hope this helps!





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