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Need 1978 gmc 400 cid belt diagram air conditioner and alternator belt diagram

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 7 Answers

SOURCE: Belt squealing when first started

The squeal when first started is most likely coming from the alternator belt. You need to have the tension of the belt checked to make sure it is properly adjusted. If you had a shop due it have , have them recheck it. Or stop by a local shop and they shouldnt charge you to check it. But its all in how you ask, if you go in and tell them your problem most likely they will try to get you for a fee to diagnose it.Just ask to have them check the belts and make sure there tight.If its ok, has anyone tried to fix your sqeul by spraying anything on it? if so your belt could be slipping from the lube they used. there is one more thing you can try, providing all the pullys/ tensioner pully if equiped are straight. If it is a serpantine belt(flat/multiple grooves) not A v-belt
when the engine is off,you take a tablespoon or so of corn starch, yes the stuff in the yellow box in the kitchen, and put it on the inside oif the belt. Its acts like a dry lube. I learned this trick at the GM dealership, from a factory bu;lliton. good luck

Posted on Nov 29, 2008

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  • 366 Answers

SOURCE: air conditioner belt missing

dont worry ac belt only drives the ac on those models,the other belt drives the rst,

Posted on Mar 04, 2009

  • 54 Answers

SOURCE: need drive belt diagram for 1996 gmc surburban

usually there is a diagram under the hood on the radiator core suport if not any napa that has michel can pull you one up on the computer

Posted on Mar 19, 2009

c17hydro
  • 2984 Answers

SOURCE: air conditioner belt 3.5 eng

A/C Belt To Remove:
NOTE: The A/C drive belt self tensioner is NOT a dynamic tensioner. After adjustment the tensioner bracket bolts are tightened. The torsion spring is no longer responsible for tensioning the A/C belt. The torsion spring is only used for initial belt tensioning.

  1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
  2. Remove alternator/power steering belt to gain access to A/C belt:
  3. Loosen, do not remove tensioner locking bolt and pivot bolt.
  4. Insert 1/2" drive breaker bar into square opening on belt tensioner.
  5. Rotate tensioner counterclockwise until belt can be removed from pulleys.
  6. Slowly rotate tensioner clockwise to relieve spring load. NOTE: Clean all foreign debris from belt pulley grooves. The belt pulleys must be free of oil, grease, and coolants before installing the drive belt.
    NOTE: Belt replacement under any or all of the following conditions is required:
    • Excessive wear
    • Frayed cords
    • Severe glazing
  7. NOTE: Poly-V Belt system may develop minor cracks across the ribbed side (due to reverse bending). These minor cracks are considered normal and acceptable. Parallel cracks are not
    NOTE: Do not use any type of belt dressing or restorer on Poly-V Belts.

Posted on Jun 28, 2009

  • 1757 Answers

SOURCE: need a serpentine belt diagram for 1988 chevy G30

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, but I am going ahead and answering it anyway. You may want to Print the Diagrams for future use.

CLICK
on the following LINK. It has the Belt Diagrams you will need.
If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!
Again my apologies...
http://www.2carpros.com/car_repair_information/year/1988/make/chevrolet/model/step_van/1988_chevrolet_step_van_drive_belt_routing_diagram.htm

Posted on Mar 06, 2010

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1 Answer

Do you have a diagram for the belts on a 1978 1 ton Chevy van?


Every 1978 Chevy van was shipped with a sticker affixed to the engine shroud, showing a diagram of the belt threading. If this sticker is lost, you're a little lost as well, since the belt threading varies with engine and optional equipment (such as air conditioning, California emissions, power steering, etc.).
Your best bet if you can't find the sticker is to do an Internet search for "1978 Chevy belt routing) and see which engine configuration most closely matches what you have... and install the belts THAT way. Sorry I couldn't provide a definitive answer!

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I need a belt diagram for 1976 chevy truck?


There are 3 separate belts, one for the alternator, one for the power steering and one for the A/C. You don't need a diagram, you just look at what groove lines up with what accessory and place the proper length belt on that set of pulleys.

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Change alternator belt 1988 GMC medium duty truck


decal under hood not there ? a HAYNES repair manual @ autoparts store has diagram, just ask to see it, they will do that for you !

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1978 GMC Vandura air conditioning belt replacement


I know this is no help really, but I have the part numbers for the belts but no diagram. I only have diagrams for serpentine belts.
Generally, the ac belt is the last one on the crank pulley. You should be able to tell if it goes around a pulley if you have empty pulley grooves.
Most V8 GM engines ran the AC belt around the crank and the water pump, but it depends on where they mounted the ac compressor.
And usually the compressor pivoted to adjust the tension.
If you can look down the groove of the ac clutch pulley and see any empty pulley grooves I would try running the belt in those grooves.
According to my Gates book, the alt belt goes around the crank and fan pulley, and the ac belt does too.

Jul 18, 2012 | GMC Cars & Trucks

1 Answer

What's your problem?1995 gmc safari alternator replacement. Need some kind of diagramed overview of the alternator and how it connects, what it looks like, how to do it basically


Hello! First see Serpentine Belt configuration diagram below... Alternator is part "C"...

If you have a voltmeter...read across the battery with engine off...Record...Start engine read again...Voltage must be 1.8 -2 volts higher; This means Alternator is working...

To Remove:disconnect (-) battery cable...Air Inlet Duct...Serpentine Belt (idler pulley maintains tension)...Heater hose brace...Wiring from Alternator...Mounting bolts...Remove alternator...

To Install: Install Alternator loosely...Tighten Rear Bolt to 37 ft. lbs...Front bolt to 18ft. lbsTighten Brace to Intake to 18ft lbs....Connect wiring...Install belt...Adjust Idler Pulley so belt moves less than 3/4" when tight...Connect (-) battery cable....Re-test as noted above...Guru...........Saaile





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Sep 26, 2011 | Cars & Trucks

1 Answer

We are trying to loosen the serpentine belt to remove the alternator on a 2000 GMC Sierra. 5.3 engine/FWD


take off air filter top and housing between the filter and the throttle body, the belt tensioner is just a spring loaded arm with a pulley on it, take a 3/8 rathet and move the arm andt ake belt off. Make note of the belt routing, sometimes there is a diagram under the hood, if not make you own diagram on paper before taking it off.

Aug 03, 2011 | 2000 GMC Sierra

1 Answer

I need a belt diagram for a 91 Geo Metro. I am replacing the alternator belt, but need to get the first belt off.I do not know where the belt tension adjustment bolt is for the first belt.


I believe the air conditioner belt tensioner bolt is underneath the mounting bracket on the compressor, then you can remove the alternator belt by loosening the two bolts from underneath on the alternator then loosen the top bolt and be careful prying the alternator inward to loosen the belt you can short a wire connection. Remove one of the battery cables to be safe!

Sep 24, 2009 | 1991 Geo Metro

2 Answers

Replaced battery on 2002 gmc envoy. now it goes dead when air is


your alternator may be the problem here. When the AC is on, the motor has to work harder, and the fans need eletricity to spin (unless they are powered by a belt, unsure). If the alternator can't keep up the battery will die.

Aug 15, 2009 | 2002 GMC Envoy

1 Answer

Does anyone have a diagram for a 1978 caprice alternator belt?


I can't send you a diagram,but it's not too hard to explain. Loosen off the alternator first. Two bolts, one you can see that goes through a bracket on the engine and another that is directly under that bolt on the bottom of the alternator that goes into the engine. Fit your new belt over the fan first, one blade at a time and on the pulley. Run the belt down to the bottom crankchaft pulley and then across to the alternator. Before you tighten the belt make sure that all 3 pulleys are in a straight line when you look from the side. If not move them so they are. Take a long screwdriver and put it in the hole on top of the alternator bracket and pry the alternator over so the belt is snug and a little bit more. Tighten the top bolt first,but be careful because it can strip the threads. Then tighten the bottom bolt.You will probably have to retighten it after a few days because the belt will stretch. If the belt squeals when you start or rev the engine then it needs to be a little tighter. If you strip the top bolt, just take it out and find a smaller one with a nut and washers and use it with the washers on the front to keep the new bolt from pulling through the bracket. Hope this helps.

Jun 18, 2009 | 1978 Chevrolet Caprice

1 Answer

Need diagram for how the belts are run on a 1984 GMC Jimmy V6


I did not pay attention  but figured it out the alternator had a dual pully on it and the parts store sold me one with single pully. Took dual pully of old one an put on new one, the rest was easy.

Sep 06, 2008 | 1984 GMC S-15 Jimmy

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