JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

You are watching: Why does my serpentine belt keep coming off


*

Hello Everybody,I"m at my wits end. I have a 1992 Chrysler New Yorker Fifth Ave with a 3.3L engine. The serpentine belt keep slipping off when it rains. I have replace the belt, the tensioner assembly, and the idler pulley, but the belt keeps slipping off. The alignment looks good on the belt and pulleys. I know they make a kit for the mini vans with a double sided belt and grooved tensioner and idler pulleys, but I have been told it won"t work for me. If one will work can someone please provide me a part number for one with A/C?What else am I missing? Has anybody else had this problem with a New Yorker? What did you do to fix it?Thank you.
*

Usually on most engines, this is caused by misaligned pulleys. Even 1/8" out of the same plane can cause a belt to squeal or ride off.
1984 Dodge Daytona Turbo Z 2.2L 5-speed 160K miles1992 Dodge Dakota 3.9L V-6 4-spd auto 4WD 242K miles; 2011 Chrysler 200 2.4L 6-speed auto 148K miles"Good judgment comes from experience. Experience comes from bad judgment."
*
Reactions:ka9yhd, valiant67 and ImperialCrown
*

Agree. Somewhere along the serp belt path, a pulley is cocked or out-of-line. I usually hold a yardstick across the pulleys and stare down the stick with one eye.The tensioner assemblies were a common culprit. There was also a TSB on shimming the P/S pump slightly to align the pump pulley with the path.The right, inner fender splash shield must be in place while driving.I have also used a water squirt bottle to "mist" the belt to see where it jumps off first. Wear eye protection and don"t stand in the line of a thrown belt when doing this.Debris in the pulley grooves and use of belt dressing products can make this worse.Oil leaks onto the pulleys must also be repaired.
soimg.org"s mission statement:A forum community dedicated to Dodge, Jeep, Ram, Chrysler, AMC owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
The correct part number is 4612379 which later got superceded to 4798385. So 4798385 is the correct part.
1987 Shelby CSX ~ 2.2L T2 A520 # 2551990 Dodge Omni ~ 2.2L A4131991 Dodge Daytona C/S ~ 2.5L T1 A568
*

I put one of these on a New Yorker that kept losing the belt. http://www.autozone.com/external-en...rpentine-belt-anti-slip-shield/604650_0_2826/
1978 Chrysler LeBaron Coupe, 360-4bbl Sunroof, 1978 Chrysler LeBaron Coupe 360-2bbl T-Bar91 Chrysler Imperial 3.3 and a fleet of K cars...
I put one of these on a New Yorker that kept losing the belt. http://www.autozone.com/external-en...rpentine-belt-anti-slip-shield/604650_0_2826/
This looks like a band aid for a tensioner that needs to be replaced.On my 92 Grand Voyager with the 3.3 liter I had to replace the belt tensioner because the arm was leaning outward causing the belt to come off.
2019 Jeep Grand Cherokee Limited | 2006 Dodge Dakota Laramie | 1989 Dodge Dakota Sport convertible | 1979 Chrysler Cordoba T-Tops
Use an OEM tensioner. The Mopar part # changed a few times as they improved the design back in the "90"s. I don"t know if the aftermarket kept up with the improvements.Use a premium serpentine belt. Gates "Green Stripe" or Mopar are suggested. They cost a little more, but should stay quiet and last awhile.
soimg.org"s mission statement:A forum community dedicated to Dodge, Jeep, Ram, Chrysler, AMC owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
Use an OEM tensioner. The Mopar part # changed a few times as they improved the design back in the "90"s. I don"t know if the aftermarket kept up with the improvements.Use a premium serpentine belt. Gates "Green Stripe" or Mopar are suggested. They cost a little more, but should stay quiet and last awhile.
I could not agree more. I have no idea if they are still good, but I used Goodyear Gatorback belts on my 3.3 and 3.8 cars many years ago. The Goodyear belts were excellent.
2019 Jeep Grand Cherokee Limited | 2006 Dodge Dakota Laramie | 1989 Dodge Dakota Sport convertible | 1979 Chrysler Cordoba T-Tops
When I had my Imperial 3.8, this happened a few times and I replaced the tensioner along with a new Dayco belt and it took care of this problem.I can"t believe it, but this also happened two weeks ago with my new LeBaron 3.0 after driving slowly through deep puddles after a torrential Florida rain storm! Go Figure!!! It took me well over an hour to get the belt back on!
I put one of these on a New Yorker that kept losing the belt. http://www.autozone.com/external-en...rpentine-belt-anti-slip-shield/604650_0_2826/
Yup - my Imperial has one, too. It used to toss the belt anytime it went through deep snow. Gave me severe frostbite one time getting the belt back on, and I wasn"t fooling around after that. Hasn"t had a problem since I installed it.Should say rain never was a problem, though.
2004 Pacifica (235,000 kms)Past cars: 1992 Imperial, 1991 Fifth Avenue, 1988 New yorker (x2), 1983 Fifth Avenue
Yea, mine went onto that "91 New Yorker parts car that I planned on using until the spring perch rotted off the rest of the way. Put the guard on and it got me to the end of it"s life and served it"s purpose.

See more: Why Did William Penn Dislike Cities? ? Why Did William Penn Dislike Cities


1978 Chrysler LeBaron Coupe, 360-4bbl Sunroof, 1978 Chrysler LeBaron Coupe 360-2bbl T-Bar91 Chrysler Imperial 3.3 and a fleet of K cars...