Question about 2003 Nissan Altima

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I have a 03 nissan altima 2.5 , and i want to bypass the ac unit. what size belt do i use. and how do i run it?? are all the pulley necessary to use? or can i bypass certain one?

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Can i bypass my 2005 nissan altima ac compressor with a shorter serpentine belt if so what siz do i need and is the diagram different for the factory placement of tbe belt

Posted on Sep 02, 2015

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Posted on Jan 02, 2017

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chiquititas
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SOURCE: Needing to remove ac compressor to install ac bypass pulley

There are a couple of ways to approach this. I just did one of these for a friend. The A/C pump seized while running. The serpentine belt broke. Crazy things can happen to other components when this occurs. In this case the broken ends of the belt, I think, whipped back around on itself on the crankshaft pulley and one of the other pulleys in the belt circuit and devastation occurred. 1) It snapped the power steering pump bracket in two. 2) It took out the alternator. 3) And not to be left out, GOODBYE cool blowin air conditioning. Time to decide what to do. He had to order the power steering bracket from a dealer (junk yards were cleaned out). He decided to replace the power steering pump with a remanufactured unit and new hoses (parts houses are much cheaper than dealer parts folks). You'll need a pulley remover that you can usually borrow (with a deposit) from some parts houses. He HAD to buy the alternato ya gotta have juice. I have been using the name, "parts houses" . (Can we use specific company names in this forum MR./MS. Editors ? I Feel I need to for the sake of all of us that come here for correct information.) THE ANSWER : DO you want to drop the bucks into fixing your A/C ? NO ? It can be involved and costly depending on how good of a do it yourselfer you are. New pumps are spendy. Then, if you use the older refridgerant you'll need a conversion kit and blah blah blah. YOU have opted for a bypass pulley. COOL ! Errrr...not actually. It's coming out. The bolts that hold the A/C pump to its bracket come out from BEHIND the bottom of the unit. They are long and won't clear the intake manifold,at least not easily. Take the bracket bolts out from the front. Take the hose from the pump to the dryer apart (at the dryer). Do you want to preserve the system for future repair? If so, cover that connection on the dryer to protect it from the world. With a sharp blade, cut the other hose coming off the pump right behind the grill. Or, try to take the fitting apart at the evaporator. Cutting it is easier. Plug the cut off end if ya want. Future repair thing. Rotate the pump forward so you can either take the bolts out,or remove the pump and bracket as a unit, with the lengths of hose attatched to the pump. This gets all that hose you no longer need out of the engine compartment. NOW THE BYPASS PULLEY. He found a pulley from NAPA. IT DOES NOT WORK ! YOU DO NOT NEED IT ! Nothing against NAPA. I have bought good parts from them before. Maybe their supplier does not know. The pulley is supposed to drop into the A/C bracket in the concave recess that the pump once occupied. IT WASN'T EVEN CLOSE. Chevy released THREE versions: Poor Boy-no power steering,no A/C. MIDMan-power steering,no A/C. Rich Guy-power steering,with A/C. SO....... If you have power steering, the A/C pump removal just put you into Midman status. Stop at your local chevy dealer, ask them to print you a belt routing diagram from the computer parts book. It shows all three versions. Go to your local,,,,,,,"PARTS HOUSE", tell them info...year,make,engine size, REMEMBER.. IT NO LONGER HAS AIR CONDITIONING. YOU'LL GET A SHORTER BELT !! IF, they sold you the bypass pulley.....GET YOUR MONEY BACK !!! Use the diagram you got. The belt is routed a little different since you lost the A/C pump and the idler pulley with it's bracket(that you can keep for future repair or trade in for to be made into beer cans) Also remember that without a belt on, the tensioner pulley is swung over to the end of it,s range of motion. When you get the belt routed correctly you have to put a wrench on the bolt on the pulley and turn hard to compress the spring. (COUNTERCLOCKWISE) The bolt is left hand thread so it won't come loose while ya reef on it to get the belt swung onto the ALTERNATOR LAST.<<<<<<GOOD LUCK !!! ADDED NOTE: Would that bypass pulley work on say...an "88" or "89" or "90" ? > I DO NOT KNOW. DID CHEVY change the size of the pump bracket after 87 ? We will be letting the good folks at NAPA know what we ran into and how we fixed it. We also will ask for a refund on the wrong part for the job. IT DOES NOT FIT AN 87! WE DO KNOW THIS..... IF the belt had just broke in half and safely dropped away, then all those parts wouldn't have been needed and the cost of the fix is FOR A SHORTER BELT and a little sweat to remove the A/C pump and bracket. The A/C NEVER WORKED ANYWAY

Posted on Jun 23, 2008

SOURCE: ac bypass pulley

I need an ac bypass pully for a 1997 Mitsubishi DIAMANTE

Posted on Oct 21, 2008

lebones337
  • 152 Answers

SOURCE: 1997 Nissan Altima 2.4L serpentine

there is an idler pully for the AC belt and im sorry this will have to be done from underneath the car because the idler pulley is on the very bottem. if you can jack it up. and put some stands underneath and it should be no problem. refer to this link on diagram #6 for the location of pulley. i hope this information helps. comment back if you need further assistance
http://www.autozone.com/addVehicleId,2326001/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c152800785c6

Posted on Jan 06, 2009

  • 1 Answer

SOURCE: timing belt 1994 nissan altima

My 1994 Altima has a timing chain on it and these are supposed to last the life of the engine. I would say unless you can really hear the problem then to leave it alone.

Posted on Feb 25, 2009

  • 8 Answers

SOURCE: 94 park avenue ac compressor locked up can i bypass?

there should be a manual bypass to remove the clutch to the compressor otherwise measure the belt and go about 10 inches or shorter (just a hint to get the belt off use the tire iron wrench and push the tension pulley toward the cab of the car the thread is reversed)

Posted on Mar 01, 2009

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2001 impala 3.8 liter belt size to bypass AC unit


You can also remove the a/c compressor and install a bypass pulley in its place. You can still use the standard belt this way, just run it to the bypass pulley instead of the a/c compressor. RockAuto has them at the link.
http://www.rockauto.com/en/catalog/chevrolet,2001,impala,3.8l+v6,1384084,heat+&+air+conditioning,a/c+compressor+bypass+pulley,10329

Jul 13, 2017 | AC Cars & Trucks

1 Answer

Can i bypass my 2005 nissan altima ac compressor with a shorter serpentine belt if so what siz do i need and is the diagram different for the factory placement of tbe belt


Why do this? If your compressor is frozen you can simply disconnect the wire going to the AC clutch and it will never engage and you have nothing to worry about. Ok, so you lug around a useless 15 pound weight but at least you do not have to go through all of the hassle in getting a new belt to bypass the AC unit.

Sep 02, 2015 | Nissan Cars & Trucks

1 Answer

I have a 2005 Nissan Altima and the air compressor has went out on it is there a way I can bypass it with a shorter belt if so what size belt do I need.


It might be possible but you will need to mesure the belt size as it will be hard to guess the size needed.
Take a peace of a string run it around pulleys like a belt and take the measurement to an auto parts store.

Feb 09, 2015 | 2005 Nissan Altima

1 Answer

I have a 2005 Nissan Altima I need to bypass the ad compressor I have a Nissan Altima and I am trying to bypass the AC compressor until I can get the money to put a new one on there is...


-Why you need to by pass the AC...? You mean you want to replace the belt with out going to the AC motor...? Even the AC motor is not running you still be able to use same belt number with out any problem. Unless the AC motor is frozen.
-If so. Make sure the AC is not on it's way and make sure you can
adjust the new belt to it tension. Just use a rope to wrap around the pulley to the accessory you need to run and make a circle then take to auto part store to match the length.


Good Luck


Mai

Feb 09, 2015 | 2005 Nissan Altima 2.5

1 Answer

Can I bypass the ac pulley in my 03 Ford focus se 2.0 split port with the serpentine belt made for no ac pulley?


An easier fix. Check with your local parts store to see if Motormite/Dorman makes an AC Bypass pulley. It goes in place of your compressor and you don't have to change the belt routing.

Nov 17, 2014 | 2003 Ford Focus

2 Answers

2003 nissan altima


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

I do not know if you still need this information, however I am answering it in case you still do.

Click on the following direct Link. It has several Diagrams for your Belt depending on your engine size and options (AC/No AC etc.) AND whether you have Tensioners OR Locking/Adjusting Bolts/Nuts.
IF APPLICABLE: These point out the direction of rotation for the Tensioner in order to loosen and reinstall the Belt.
IF APPLICABLE: These also point out where the Locking and Adjusting Bolts/Nuts are, to loosen the belt and remove; and reinstall the Belt and .

Standard Rules to Removal the Serpentine Belt with a Tensioner:
1. Find the Tensioner(s). (See Diagrams on Link)
2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating it\moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
3. Remove the loosened belt off one of the other more easily accessed Pulleys.


Standard Rules for Installing the Serpentine Belt with Tensioners:
a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley.
d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.Com!


http://www.2carpros.com/car_repair_information/year/2003/make/nissan/model/altima/2003_nissan_altima_drive_belt_routing_diagram.htm

Feb 17, 2010 | 2003 Nissan Altima

1 Answer

I need instructions and a diagram to bypass the ac pulley when replacing the serpentine belt in a 2001 ford taurus.The belt broke, due to age and a frozen ac pulley. I need to know what size belt I will...


simple trick provided you can do this by running some twine around your pulleys allowing for1-2 inches less for slack adjuster an that will pretty close.or they may have for that system without ac meaning the condenser unit.

Nov 28, 2009 | 2001 Ford Taurus

1 Answer

On a 2001 saab 93 turbo can can you bypass the ac compressor or is there a bypass pulley


You can bypass both the AC compressor and the middle serpentine idler pulley with a 6PK1790. The middle pulley is bypassed by running the belt straight line from the upper rear serpentine idler straight to the power steering pulley, then over the water pump (the smooth pulley powered by the back side of the belt) and down to the engine drive pulley (harmonic balancer), bypassing the AC compressor) This works fine. On 9.5 models, the same basic idea, but a slightly different sized belt.

Jul 16, 2009 | 1999 Saab 9-5

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Need to bypass ac compressor on a1997 chevy lumina 3.1l


the models without AC use a AC delete pulley, so there is only one belt size, the pulley goes where the compressor is in your with AC car, contact Ford for the AC delete pulley

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