Serpentine Belt Replacement and Diagrams

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/replace-serpentine-belt

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

How to replace the drive belt

Accessory Drive

Removal
1.Rotate the drive belt tensioner clockwise and remove the drive belt.

Installation
1.To install, reverse the removal procedure.

Replacing serpantine belt someone else took off.

Hello,

I have included the information that you requested in the diagrams down below. Please go through the guide and get back to us with how everything turns out.

Thanks,
Alex
2CarPros

The engine makes a belt squealing type sound even with the serpentine belt removed. i replaced the serpentine belt, replaced the idler pulley and the tensioner. I also inspected the component pulleys (alternator, power steering pump, etc.). I cannot find the source of the squeal.

Hello,

Double check the components again. Look for any play at all in the pulleys. Any squealing noise almost certainly has to be coming from a rotational assembly on a component. Please double check and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

I removed the serpentine belt and started the engine. It still makes the squeal even without the components turning at all. Without the belt the only thing turning is the camshaft pulley. But without a belt on it how can it squeal?

Hello again,

Hmm, what about the crankshaft pulley? Double check that something didn't fall down between the harmonic balancer and the timing chain cover creating the squeak. I'll think about some more, but this is a tough one. Please get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

I've been doing some research, it seems that the harmonic balancer on these trucks might be two pieces with rubber inserted between them to absorb vibrations. I'm thinking that if the rubber has deteriorated it may be the source of the sqeal. I'm trying to come up with a way to test this theory without removing the harmonic balancer. Any ideas?

Hello again.

If you suspect that the crankshaft pulley is bad, it needs to be replaced. In the diagrams down below I have included the removal and installation instructions from the factory on the removal and installation of the crankshaft pulley for your vehicle. Please let us know how it turns out.

Thanks,
Alex
2CarPros

I have a 2001 Ford Expedition EB with 160,000 miles. The alternator finally gave up. No problem. $160 bucks and 1-1/2 hours later and I had a new one installed. However! I noticed, just before starting the engine to check the installation, that the belt was not quite in place on one of the pulleys. I brought out the 1/2" drive and a small cheater pipe and rotated the pulley arm to allow me to move the belt to its correct alignment. I guess in my haste I did not seat the drive properly and ended up breaking out the pulley socket pocket.

My question. Since this now missing material which was directly above where the pulley pivot is located, have I compromised the integrity of this area enough to have to worry about a failure (pulley pivot breaking off?) to have it replaced?

What does one grab onto, now that the socket is gone, to rotate the arm?

just replace the belt and tensioner they are recommended a t60k you can place a large screwdriver where pointed out and move it to get belt undone. make sure alignment is correct otherwise it will wear the new belt fast.

I replaced the belt about 30K miles ago and it looks great, no cracking.

As for the screwdriver placement? It appears that you are suggesting that I now rotate the arm using the idler pulley as the upper ground point and the middle of the arm as the pressure point?

The question if I should replace the arm due to the missing material? I should assume that this does not bother you?

if you didn't replace the tensioner when you did the blet then it needs to be done so releivng tension to remove belt then removing the tensioner an dreplacing it won't matter if you damage the tensioner further. but it shouldn't take a lot to move it anyhow. if the area that you said is broken (pic) then it's not going to last very long anyhow

You have pointed to the area that is broken all right! Two sides of the square 'socket' are gone. Thus my concern. Since I am by myself, and most likely will need assistance, I will now take the Expedition to my trusted independent this coming week. It looks like it should be less than a 1/2 hour shop charge plus about $40 for the new arm. So my cost saving self repair will wind up costing me a bit of labor $'s after all. Oh well.

Thanks for your time and input. And have a great 4th.

you cold probably do that yourself it's apretty easy job unless you feel you'll damage it more it runs from $25-46 at rock auto so a local store would be n that price range, more where you replace it. but it 's up to you.

The local (central Texas) AutoZone has the part for ~$42 +tax. The information that I can find online indicates that the shop time should be in the .4 hour range to replace it. At $90/hr that would be about $36 +tax.

As I stated, I am the lone person here to work on my equipment. An '05 F350, '12 Expedition, Kubota diesel tractor and two Kawasaki mules. Add to that I will be 70 later this month. The point being that I am not as agile and flexible as I used to be. I don't even change my own oil any longer!

The alternator was easy, all standing upright. Crawling under the vehicle and having to relieve the belt tension AND slide the belt off, well, I think the $36 may just be well spent. My error in not watching closely what I was doing. So a bit of penance may just be required.

Again, have a great week-end.

need to replace the serpentine belt by bypassing the ac compressor. So I am wondering if anyone has a belt part number or an idea of what I need.

nope anytime a bypass like what you are doing has to be done at auto parts as it is hunt and peck time to find one that fits.

Not really possible to do on that engine with the current hardware. There is a different accessory drive mount with a different tensioner and idler mount when they didn't have AC. With the location of the idler and tensioner on the AC equipped models, any belt that would fit couldn't be used because there isn't a way to adjust it. You might be able to use an AC bypass adapter but those are more than a used compressor.

What is wrong with the compressor you have? If it's the compressor itself that is bad, but the pulley and bearing are OK disconnect the clutch activation connector and use it as an idler pulley until you can replace it. If the bearing is bad you could just go to a you-pull-it type yard or a salvage yard and get a compressor.

Very helpful guys thanks for the feedback.

Steve W. is one of our best!

Good to hear, please use 2CarPros anytime we are here to help.

Best, Ken

Engine Mechanical problem
2000 Ford Expedition V8 Two Wheel Drive Automatic

how do i put on a belt.i replaced my alternator in i cant get my belt back on

Hello richking12, # Rotate the drive belt tensioner clockwise and put the drive belt back.(see diagram for location of the tensioner.)

"My 1999 Ford Expedition (formerly a police vehicle) has a serpentine belt that is not installed according to the diagram under the hood. The belt isn't connected to the water pump and crankshaft pulleys. Why is this?"

It should follow the diagram provided. Take a look at these diagrams and see if they are the same or different than the one on the car. The belt needs to turn the water pump If it isn't, the engine will overheat. Also, if it isn't connected to the crank pulley, it won't turn.

Let me know.

https://www.2carpros.com/diagrams/ford/expedition/1999

Yeah, it's the weirdest thing. The belt totally bypasses the water pump and the crankshaft, but the vehicle runs fine. How could this possibly work? And why would a police vehicle be set up this way?

I don't see how that is possible. Can you upload a pic for me to look at?

diagram for serpentine belt?

this routing diagram is for 5.4L expedition Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.