Question about Chevrolet Malibu

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The shiny pulley on top left side of engine is loose and its also overheating

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  • acuramdx2002 Mar 21, 2011

    whats the yr and make of your vehicle? And is the vehicle thats overheating? I need to determine which pulley you are refering to.



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  • Chevrolet Master
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That shiney, overheating pulley is likely seized and the belt is rubbing on it instead of spinning with it, causing the overheating. Have it inspected and replaced.

Posted on Mar 21, 2011


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Have a pulley whining

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The timing belt broke on my 2001 ford focus 2.0 z engine how do I fix it

If you are technically minded, this job should take you about an hour or so, provided that you have the right tools for the job. The first thing to do is to expose the old timing belt by removing the plastic cover running down the full length of your engine from the top cover( where you fill up the oil) to the bottom, near the floor. To do this you may have to remove all the drive belts such as the alternator, power steering and air conditioner belts.
Next, place the car in 1st gear and ask some one to apply pressure to the brake pedal. this is to prevent the engine from turning whilst you loosen the bottom crankshaft pulley bolt, so as to gain access to the timing belt. This bolt might be VERY tight, in which case you need to stop the crank shaft from turning by holding the ring gear on the opposite side of the engine. To get to this you must first disconnect your battery and then remove the starter motor. You now need something like a large screw driver or tyre lever to place between the engine and the flywheel teeth to prevent the crankshaft from turning. Once you have loosened the front crank pulley bolt, you should remove the top engine cover to expose the cam shaft.
You now have to set timing, To do this safely, first remove all the spark plugs so that you can see when number one piston comes up to the top of it's stroke, Now remove the distributor cap and work out where the rotor is pointing and which spark plug is the next in sequence to get spark. remember the MOST engines rotate clockwise, when looking from the cam belt side towards the flywheel. to ensure that the valves do not ouch the piston when you turn the engine, turn the engine at the front crankshaft pulley slowly until the closest piston ( number one) is at the top of it's stroke. You can confirm this by looking for a mark on the front crankshaft pulley which should now correspond with a mark on the front engine cover. If there are a few marks on the cover, look for a zero (o) or TDC mark. Align the pulley mark and the front cover mark, Now turn the camshaft until number one spark plug will receive spark. Now take a close look at the camshaft pulley. There should be a mark of some sort to indicate that the camshaft is also corresponding to TDC.
You can now remove the front timing belt covers and remove the old belt. Now remember that the engine rotates clockwise, so therefore, there will be a tight side and a loose side to your cam belt. On the loose side there should be some sort of tensioning device. This must be locked out of the way to allow you to fit the new belt.Double check that your timing marks are correct and then place the new belt over the toothed pulleys with the tight side on the right, and any slack or free play on the left. Once the belt is in place, release the tensioner. Double check that the timing marks are still correct.
Replace the front covers and the top cover.
Replace the front crankshaft pulley and tighten. A few drops of locktite thread lock should be applied to the bolt before tightening. This bolt should be torqued to a factory setting of about 140 Nm.
It is a high tension bolt so do not be scared to make it as tight as you can. Replace all the belts, distributor cap and spark plugs and the job is done. Before starting the engine, turn the crankshaft by hand at least two revolutions to ensure that all is well.

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I have a 99' Durango in which my serpentine belt

I would not drive the car at all, except to a shop to have the leak fixed, the car checked out good to see if the overheating is stopped, and if the fix also corrected the serpentine belt problem-sounds like a seized pulley and it may be the water pump pulley. Overheating is one of the major causes of early engine failure. Don't put it off, or you'll be overheating from a major repair bill!

Jun 12, 2012 | Cars & Trucks

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How to change water pump on toyota sienna

3.0L Engine
  1. Before servicing the vehicle, refer to the precautions section.
  2. Disconnect the negative battery cable.
  3. Drain the engine coolant.
  4. Remove or disconnect the following:
    Wiper and blade assembly Top cowl seal and panel Window washer hoses, from the ventilator louvers Left and right ventilator louvers Heater air duct Timing belt
  5. Mark the left and right camshaft pulleys with a touch of paint.
  6. Remove or disconnect the following:
    NOTE Be sure not to mix up the pulleys.
    Right and left camshaft pulleys bolts Pulleys from the engine
    No. 2 idler pulley by removing the bolt 3 clamps and engine wire from the rear timing belt cover 6 No. 3 timing belt cover-to-engine bolts Water pump nuts/bolts Water pump and gasket from the engine

    Fig. Exploded view of the components to gain access to the water pump-3.0L engine

    Fig. Exploded view of the water pump and related components-3.0L engine

To install:
  1. Check that the water pump turns smoothly. Also check the air hole for coolant leakage.
  2. Apply liquid sealer to the gasket, water pump and engine block.
  3. Install or connect the following:
    NOTE After tightening the bolt, be sure the idler pulley moves smoothly.
    NOTE Be sure to align the knock pin hole on the camshaft pulley with the knock pin on the camshaft.
    NOTE Be sure to align the knock pin hole on the camshaft pulley with the knock pin on the camshaft.
    Water pump, using a new gasket. Tighten the nuts/bolts to 53 inch lbs. (6 Nm). Rear timing belt cover. Tighten the 6 bolts to 74 inch lbs. (9 Nm). Engine wire with the 3 clamps to the rear timing belt cover No. 2 idler pulley. Tighten the bolt to 32 ft. lbs. (43 Nm).
    Right-hand camshaft pulley, with the flange side outward.
    Tighten the camshaft bolt to 65 ft. lbs. (88 Nm), using the removal tools Left-hand camshaft pulley, with the flange side inward.
    Tighten the camshaft bolt to 94 ft. lbs. (125 Nm), using the removal tools Timing belt
  4. Fill the engine coolant.
  5. Install or connect the following:
    Heater air duct Left and right ventilator louvers Window washer hoses to the ventilator louvers Top cowl seal and panel Wiper and blade assembly Negative battery cable
  6. Start the engine.
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Hope this help.

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Need serpentine belt routing diagram for 1994 Dodge grand caravan

Looking at the engine from front (right side of the Van): Stating at the Top, Going Left to Right and Clockwise:
Over the Alternator
To under the Idle Pulley,
To Over the AC Compressor.
To the Left Side of the Water Pump.
To the Right side and Under the Crankshaft Pulley
To the Right side and Over and Down the Tensioner
To Under the Power Steering Pump
And Back up-to the Left side of the Alternator.
Advise when puting it on:
Put the Belt around everything else accept for the Alternator. After it is around all the rest of the Pulleys - Pull the belt up - tight from the Power steering Pump and the Idle Pulley to form a loop, holding the Belt close to the Altenator Pulley.
Using the 15mm wrench or belt tensioner bar - rotate the Tensioner Pulley towards the front of the Van and then place the belt over the Alternator.
Let me know if this helped or if you have additional information or questions. Feel free to contact me at!

Jan 21, 2010 | 1994 Dodge Grand Caravan

1 Answer

Diagram 2004 jeep grande cherokee serpentine belt

For the 4.7L: Looking at the Pulley straight on and Starting at the top Left (AC) and going right (clockwise):
Over the AC Pulley.
Under the Water Pump Pulley.
Over the Generator Pulley
To the right side of the Power Steering Pulley.
Under the Crankshaft Pulley.
To right side and up and over the Lower Idler Pulley.
To under and around the left side of the Tensioner Pulley,
Connecting to the Left Side and Up and over the AC.

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Overheating... My temp light keeps coming on. I checked the oil and it is fine. Checked the radiator and it is full. Engine coolant bottle is full.... So what is making it overheat?

By the sound of it your light is telling you a lie and theres nothing wrong with the engine as if your not loosing any water and engine isent overheating then just get another sensor fitted.
But if you are loosing water or the engine is overheating ,then check the radiator with engine turned off,, put your hand on the top half of the core and then the bottom 1/2 of the rad core and if the top 1/2 is cold and the bottom is hot then you have either the thermostat is faulty or the radiator is dirty inside and maybe also out side in the fins.
Let me know how you get on . RON

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Engine makes a squealing noise when running. No

is it comming from the serp belt?look when the car is off to see if the belt looks brown and shiny and or cracked,,it could be the belt is loose or just old and worn and slipping on the pulleys,,may be your noise,or if you mean squealing while driving it could be the brake pads are low and the low indicator squealers are hitting the rotors to let you know the pads are low and need replacement

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I need a diagram of a 2004 suzuki forenza Serpentine Belt

That's easy, there are some pulleys with ridges to grip the underside of the belt, and some are smooth for the top side of the belt.
I can only assume your belt broke and fell off so you couldn't see how it was on prior. But either way you have limited length, and the last place you would be routing the belt is the tensioner, which you should have located first, so you can have a wrench handy to fit it.

Here's what you have:
Top left= alternator (small ridged)
top right = power steering (large ridged)
Bottom right = AC compressor (large ridged)
Bottom middle = Crank Pulley (large ridged)
In middle next to Power steering = Tensioner (small shiny smooth)

Remove the air cleaner housing (two bolts)
Start on left top side and loop belt (clockwise) across the alternator to the power steering down to AC (also clockwise from right to left) then over to crank pulley (from bottom clockwise around to top of pulley) to tensioner (smooth, belt is backwards on it) which will go back up to the alternator.

At the top middle there should be a sensor protruding from the timing cover that the belt passes under as it connects between the alternator and the power steering. And you won't easily be able to fit anything besides a box-end wrench on the tensioner, so you may need some kind of extension on the wrench to get good torque on it without hurting yourself.

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Need name of big slick pulley on top and to the front of motor

Yes, it is the idler pulley and yes you can get the replacement part for it. The bearings are toast.


May 21, 2009 | 1997 Pontiac Trans Sport

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