Need to bypass the air conditioner on a 99 jeep wrangler, was told to order a new belt with out the ac option... did that and belt is to big... do i need to put a ac bypass pulley on?

we diagnose first
and fix next
in that order or go broke fast GUE$$ing endlessly.
ask how to do the tests using real shop tools you do not have?
this is only the beginning tests. I have posted them all here vast times.already./
all fuses test good?
BLower works on high, (dash hAVAC blower)
the dash AC lamp glows. AC turned on.
the engine bay, compressor clutch fully engaged and compressors spins
and belt to it not missing or slipping.
full stop, lots more to do . but, you need tools to go beyond here.
most 1994 this is long ago dead, not told history of HVAC.

i say get a shop to diagnose it, pay them.
like 99% do or more.

Without the compressor, don't you need to put a different pulley in its place in order to reuse your existing serpentine belt? I'd read what these guys have to say before going any further:

http://www.wranglerforum.com/f218/deleting-air-conditioner-1993890.html%3famp=1

Is there any particular reason why you want to eliminate your compressor? If you don't turn on the air, the compressor freewheels, so why bother removing it?

why ask twice read, your other post.
the answer is there.

There is no such belt, you must install an AC delete pulley (goes where compressor went) if avaialbe.

probably just shorter belt will not go round air-con

There is a easy way to re-route the belt after the A/C is removed on any 4.6L Due to the idler and tensioner. When the a/c is not running the pulley spins freely anyway. On 99 and older panthers you can get a shorter belt to bypass the power steering for a little extra power, but need install A/C COMPRESSOR BYPASS PULLEY, or you could buy a a/c compressor delete kit comes with a bracket and idler pulley, that would make things easier, you can use a stock belt with that kit.

Check this for 99' and older belt routing...



Also, check this diagram (click over pic for zoom)...



The tensioner would still work, just not very well. So you would need to by a tight belt to compensate. As far as measuring the new belt size, you will need to use a tape measure, or some string and then measure the length. The best option is an a/c delete 'kit'

Green line represents a revised belt routing in order to *bypass* the A/C compressor. With this method, the tensioner WILL work but VERY limited - you must purchase a tight belt.

Note this is only applicable for the '93-'99 belt routing

Hope helps (remember to rate and comment this answer).

Click of the following direct, Free Link. It has several Serpentine Diagrams, including the one for your 1998 Jeep Wrangler 4.0L In-Line 6-Cylinders based upon your Engine Options (AC/No AC, Power Steering/No Power Steering, etc.).
The Link Page ALSO has the 2.5L In-Line 4-Cylinder Serpentine Belt Diagrams with their various engine options.
Included are the with AC / without AC Routing.

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/1998/make/jeep/model/wrangler/1998_jeep_wrangler_drive_belt_routing_diagram.htm

Suspension or brake work tends to light half the idiot lights on the dash on a more modern car. the electronics associated with them seem to be especially sensetive to having parts replaced by anyone except a certified tech for the manufacturer. take it for a test drive and get a Carfax on it if you're not positive. Bypassing an AC compressor is not that big of a deal to people more interested in Economy than in-cabin comfort. some places even manufacture a bypassing pully that sits in the place of the AC compressor, when it's removed, so they don't have top buy a new serpentine belt. the bypassed compressor, by now, is probably hard seized, or there could have been a leak or other damage to the AC system that the previous owner didn't want to deal with. Also, some people actually believe that cutting off the air conditioner will gain a couple MPG. it shouldn't make a lot of difference in a vehicle that normally gets only in the low teens of mileage anyway. the compressor only creates drag, apparently, when it's actually being used to cool the vehicle. I'd worry more about the perpetually on Airbag light.

No cabin filter in a 97 Jeep Wrangler.

not really i had a 1995 and the a/c was seperate. who needs a/c with a soft top anyways. so in short no they weren't tricking you it was seperate