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93-96 G-Van ABS "recall" #741525
October 12th 2018 9:12 pm
October 12th 2018 9:12 pm
Joined: Oct 2016
Posts: 252
Ohio
Gladiator Offline OP
enthusiast
Gladiator  Offline OP
enthusiast
Joined: Oct 2016
Posts: 252
Ohio
While doing some research I found that in 1999 GM had recalled the ABS control modules for 93-96 G-Vans. They had been replacing them for free until December 1st, 2002, it didn't last long as they didn't really consider it a typical safety recall but a safety improvement campaign.

From what I've read it's due to a flaw in the programming of the original ABS module, where if you are driving on dry road and brake then go over a slippery spot (wet, snow, gravel) and if the ABS kicks on, and then you go back on dry road the ABS won't shut off right away and it will perform as if it's still on a slippery surface which could cause extended stopping distance and in a lot of old online complaints an accident.

The original ABS module was not able to be reprogrammed so it had to be replaced with an updated module.

The module itself is torx screwed into the ABS pressure modulator valve which is located above a metal splash shield underneath about where the middle row right passengers feet go. The way to tell if you have the original module or the updated module is to remove the 4 bolts holding the module bracket to the frame (carefully because of the attached brake lines), then pull down the side farthest back and see if the module says, Kelsey Hayes with a KH logo, if it does then it has the original module, if not then it likely has the updated module.

Seems the updated module is part# 88880026, which is still available as NOS if you want to do the fix yourself, although you will have to have a GM dealer program the new module with your correct tire size using a Tech 2 programmer.

I was hoping the second owners of my 95 would have had the fix done since they bought it from the Chevy dealer Grandma traded it to but it has the original Kelsey Hayes module.

[Linked Image]

Here are the affected vins:
[Linked Image]

[Linked Image]

Here is a PDF of the recall info.


1995 Emerald Green Chevy G20 350TBI Gladiator conversion
Re: 93-96 G-Van ABS "recall" [Re: Gladiator] #741526
October 12th 2018 10:10 pm
October 12th 2018 10:10 pm
Joined: Jun 2010
Posts: 14,014
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 14,014
Van Diego California
Way cool thanks ...


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: 93-96 G-Van ABS "recall" [Re: Gladiator] #741571
October 14th 2018 12:12 pm
October 14th 2018 12:12 pm
Joined: Aug 2018
Posts: 78
Pennsylvania
D
Dw89xj Offline
journeyman
Dw89xj  Offline
journeyman
D
Joined: Aug 2018
Posts: 78
Pennsylvania
Nice also thank you. I'll have to check mine.


98 Dodge shorty hitop mark iv
95 Chevy van 20 regency hitop conversion van
Re: 93-96 G-Van ABS "recall" [Re: Gladiator] #744859
January 30th 2019 11:32 pm
January 30th 2019 11:32 pm
Joined: Oct 2016
Posts: 252
Ohio
Gladiator Offline OP
enthusiast
Gladiator  Offline OP
enthusiast
Joined: Oct 2016
Posts: 252
Ohio
I found a NOS updated abs control module, part # 88880026 on eBay for under $100, so that I can perform the safety improvement campaign myself, but it'll be a minute before I can install it with these sub zero temps.

On the updated module, the side that faces to the rear of the van has no symbols stamped on it, unlike the original abs module which has the Kelsey Hayes logo on it.

[Linked Image]

The updated module has a STMG sticker on it.

[Linked Image]


It also comes with 7 new torx screws. The improvement campaign instructions say to replace the gasket with the new one, although the new one doesn't have any holes in it for the connector in the middle, but they have indents where they would be. I'm not sure if you're supposed to poke them out before installing or if they pop open when you tighten it, if anyone has some insight.

[Linked Image]


1995 Emerald Green Chevy G20 350TBI Gladiator conversion

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