tranny proublems

[LUMBER MAN]

2001 chevy 4x4 extended cab 8' bed
Last week started truck and drove away never shifted out of 3rd also jumped when started and stoped, service enging light came on then truck went to dealer for the first time code PO708 showed up they said I needed a new switch because water corroded it the trans technician said the spray from the front tire is in direct line with the switch they installed new switch and reprogramed controller I asked if new switch was different they said no and there was a good chance it would do it again . And guess what they said it was not under waranty and it cost $512.00 to fix

[DmaxMaverick]

Welcome to the forums!

Sorry to hear of your experience. You'll really hate what has to be said about it. That switch can be had for less than $50 from an Allison dealer, and takes less than 30 minutes to install with no special tools. Even if it's out of warranty, go back to the dealer and pitch a fit. It is a known issue, and they should fix it. If you have the tan switch, then it's the latest one, which is supposed to be better according to Allison. If your switch is black, it is the older one, and the dealer ripped you off by selling you old, inferior stock. $512 is a rip off in any case. The dealer sells the switch for around $100, and it takes them less than 1/2 hour labor to replace it. A realistic dealer repair should be less than $200, including diagnostic and programming.

Search the posts for "NSBU" and you'll get lots of info on it.

[madmatt]

found a bulletin pertaining to NSBU switch sheilds available through aftermarket sources. it's an easy install and a worth while investment in my opionion. heres the list....
Canadian Distributors

Alberta

4 WEST

3410 - 9th STREET S.E.

CALGARY, AB T2G 3O3

CONTACT: TERRY LENARD

Email: 4west@shaw.ca

FAX: 403-243-7375

PH: 403-243-0079
CROSS CANADA AUTO BODY

8221 MCINTYRE ROAD

EDMONTON, AB T6E 5J7

FAX: 780-440-0498

PH: 780-448-1901
CUSTOM TRUCK PARTS

13313 - 100th STREET

GRANDE PRAIRIE, AB T8V 4H4

email: ctpdist@telusplanet.net

FAX: 780-532-1084

PH: 780-538-2211

ENTERPRISE ROBERT THIBERT

6804 - 30th STREET S.E.

CALGARY, AB T2C 1N9

Contact: STEVE AGOPIEN

PH: 403-589-3758
INNOVATIVE CREATIONS ENTERPRISE

URBANEX ENTERPRISE LTD

1520 - 33 ST. N

LETHBRIDGE, AB T4H 5H3

CONTACT: DARWIN EARL

FAX:403-329-3564

PH: 403-329-8801
TYA SALES

11761 - 156th STREET

EDMONTON, AB T5M 3N4

FAX: 780-452-5622

PH: 800-665-3665

British Columbia

LORDCO PARTS

22866 DEWDNEY ROAD

MAPLE RIDGE, BC V2X 3K6

FAX: 604-463-7557

PH: 604-467-1581
NORTH SHORE OFF-ROAD

1520 RICHMOND STREET

NORTH VANCOUVER, BC V7T 1B2

FAX: 604-988-3366

PH: 604-988-7677
TYA SALES

1765 DOUGLAS ROAD

BURNABY, BC V5C 5A5

FAX: 604-320-2020

PH: 604-320-2000

Ontario

KIRSCH & GIDARO MARKETING

120 JEVLAN DR. #3

WOODBRIDGE, ON L4L 8G3

CONTACT: MARSH GIDARO / MARC GIDARO / AL WRIGH

FAX: 905-856-1199

PH: 905-856-1155
AUTOSTOCK DISTRIBUTORS

5101 ORBITOR DRIVE UNIT B

MISSISSAUGA, ON L4K 4V1

FAX: 905-629-7205

PH: 905-361-4300
CROSS CANADA AUTO BODY

2895 WALKER ROAD

WINDSOR, ON N8W 3R2

FAX: 519-966-4266

PH: 519-966-0450

CROSS CANADA AUTO BODY

5 TILBURY COURT

BRAMPTON, ON L6T 3T4

FAX: 905-454-4098

PH: 905-454-5580
MID CANADA AUTO

1134 ROLAND STREET

THUNDER BAY, ON P7B 5M4

FAX: 807-623-1105

PH: 807-623-1990
NATIONAL 4 x 4

4122 SOUTH SERVICE ROAD

BURLINGTON, ON L7L 4X5

EMAIL webmaster@national4wd.com

FAX: 905-634-6010

PH: 905-634-0001

RIVA TRUCK ACCESSORIES

#11, 5875 HWY 7 WEST

WOODBRIDGE, ON L4L 1T9

FAX: 905-851-6082

PH: 905-851-7482
TRUCK ACCESSORIES PLUS

2 FISHERMAN DRIVE, UNIT #8

BRAMPTON, ON L7A 1BS

FAX: 905-846-4026

PH: 905-846-1016

Quebec

ENTERPRISE ROBERT THIBERT

200 BOUL. ST. JEAN BAPTIST

MERCIER, QC J6R 2L2

FAX: 450-691-4280

PH: 450-699-0560

United States

Nevada

CUSTOM TRUCK

3068 E. FREEMAN

LAS VEGAS, NV

89104-2208

FAX: 702-641-4537

PH:702-641-4666

Montana

ROCKY MOUNTAIN TRUCK ACCESS

BOX 80844

BILLINGS, MT

59108

FAX: 406-245-2904

PH: 406-245-5500

California

SIERRA TRUCK & VAN

225 LOPES RD.

FAIRFIELD, CA

94534

FAX# 707-864-4383

PH# 707-864-1064
TRUCK SMART INC.

4055 GRASS VALLEY HWY.

STE. #107

AUBURN, CA 95602

FAX: 530-888-9172

PH: 530-888-7825

PICK-EM-UP TRUCK STORE

1921 VERNE ROBERTS CIRCLE

ANTIOCH, CA 94509

PH: 925-776-4847
PICK-EM-UP TRUCK STORE

3768 SANTA ROSA AVENUE

SANTA ROSA, CA 95407

PH: 707-585-8995

[ScubaAl]

I have the EXACT problem. Will be dropping off at the dealer Mon.
Is there a chance this is something a person can install ones self?
If not I will post what goes on at the dealership.
Al

[madmatt]

yeah it's real easy, here the procedure:

Disconnect the external wiring harness from the PNP switch.
Disconnect the shift linkage/cable from the shift lever on the selector shaft.
Use wrench to prevent the shift lever from rotating. Remove nut from the end of the selector shaft. Carefully remove the shift lever from selector shaft.
Remove the two bolts. Remove the PNP switch by sliding it outward over the selector shaft.
Important: If the park/neutral position switch did not easily slide off the selector shaft, use a file to remove any burrs or raised metal where the selector lever was seated against the shoulder of the selector shaft.

and to install:

Be sure that the neutral assurance bracket is in the proper position on PNP switch.
Make sure the selector shaft is in the N (Neutral) position as follows:
- Place a wrench on the selector shaft flats and rotate the shaft to its furthest clockwise position.

- Rotate the selector shaft counter-clockwise two detents.
Align the PNP switch with the main housing so that the neutral assurance bracket is facing outward.
While maintaining the correct PNP switch-to-selector-shaft alignment, slide the new PNP switch over the selector shaft.
While holding the neutral assurance bracket in engagement with the PNP switch, install the two bolts so that the PNP switch may be rotated with some effort.

Tighten
Tighten the two bolts to 27 N

[dmaxalliTech]

NSBU switch is covered under the emissions warranty up to 7/70 IIRC. Its only covered that long on the diesels. Have your dealer look in the P&P manual...Its there.

[ScubaAl]

Thanks for the info guys, would be great if it would be covered under warranty.
Say I have the "edge" installed on the truck, should I remove it before bring it in? I don't have any gauges installed. So that won't be a give-a-way. Never push the truck hard, just like the little extra punch getting on the freeway from time to time.
Later, Al

[ScubaAl]

Originally posted by dmaxalliTech:
NSBU switch is covered under the emissions warranty up to 7/70 IIRC. Its only covered that long on the diesels. Have your dealer look in the P&P manual...Its there. Do you know if there is a website that has this info. Would be handy when talking with the dealer.
Thanks,Al

[DmaxMaverick]

Originally posted by ScubaAl:
Thanks for the info guys, would be great if it would be covered under warranty.
Say I have the "edge" installed on the truck, should I remove it before bring it in? I don't have any gauges installed. So that won't be a give-a-way. Never push the truck hard, just like the little extra punch getting on the freeway from time to time.
Later, Al You bet! Take the box off. Your current issue has nothing to do with it, but you may have an issue later, and the dealer might remember you had it on there (or make a little note in your service file). They can be quite anal about such things, and deny warranty claims because of it, even if the box didn't cause it.

[dmaxalliTech]

Scuba, dont know of any website detailing it, other then what I have read myself in the P&P manual. I was in the dealer for more then 10 years and we had constant access to it.

[madmatt]

the federal emissons warr. is actually good to 8yr/80K. Your dealer can look on dealerworld for a list of wahts covered and what ain't. It's a rather extensive list but is to the point as to what is covered and for how long.

Emission Defect Warranty
General Motors Corporation warrants to the owner that the vehicle:

[ScubaAl]

Had the switch replaced Tues. I dropped the truck off Mon morning and took longer then I would of liked. I kept telling them what the problem was, but they had to follow procdures.
Anyway cost: Switch $188.69
Labor $149.24
Shop supplies $ 19.48
codes P0700 P0708
Al

[madmatt]

Man Al, have you priced one of these switches @ an Allison dealer? it'd make you sick. About $60 for the switch and about 1/2 hr labor to do it yourself.

[ScubaAl]

Originally posted by madmatt:
Man Al, have you priced one of these switches @ an Allison dealer? it'd make you sick. About $60 for the switch and about 1/2 hr labor to do it yourself. Makes a person sick doesn't it. Better off then a guy I work with. He has the same truck w/juice and a bunch of goodies blew up the tranny. Talking anywhere from $4200-$5200
Al

[madmatt]

turn him on to a proloc tranny and a sun coast converter. about the same money for a lot better tranny.