In this video we do an EPIC level of detail in this Kelsey-Hayes EBC310 4WAL ABS module repair, plus a bonus ABS assembly complete teardown and part identification overview (covering GM C, K, P, G, S, and T trucks and vans). We diagnose a C0268 ABS code, and we also discuss a pulling to one side during hard braking ABS fault. Finally, we use the GM Tech2 scan tool to identify the C0268 code, our module specs, and bleed the replacement.

The vehicle shown is a 1998 Chevrolet Cheyenne K2500 with the 5.7L vortec V8, but the procedures, parts, and techniques shown are applicable to any 1995 thru 2000 (also 3500HD thru 2002) old body style (OBS) GM truck GMT400 types such as the Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, Chevrolet Cheyenne, Chevrolet Tahoe, GMC Suburban, Cadillac Escalade, or GMC Yukon with the Kelsey-Hayes EBC310 4WAL ABS brake system.

Also applicable to some Holden branded GM K trucks in Australia of the same years.

The eBay and Amazon search links below are paid links, for which I may be compensated and earn a commission, if you choose to buy the parts and tools shown in this video thru them:

NOTE: most of the GM parts are now discontinued so available NOS only. Most searches will return empty results.

For a rough search of used ABS assemblies (EHCUs), without specific part numbers, try here: https://ebay.us/iuMqO0 but be sure you ask the seller about the donor vehicle to match yours.

C/K truck ABS combination valves including code A (GM 12548265), code D (GM 12548273), code L (GM 12548278), and code S (GM 12548279): https://ebay.us/3IgLow

C/K truck ABS BPMV GM 12475489 (all except C3500 w/JF9 brakes) you may find it at this link: https://ebay.us/Nmc6XT

For the C/K truck ABS EBCM with JB6 & JD6 brakes (also 2 door SUVs and pickups w/ JB5/JD5 but w/o Z60 or 2 door SUVs and pickups w/ JB5/JD5 but w/o Z56) use GM 12474925. This might be found at this link: https://ebay.us/nQoE5j

For he C/K truck ABS EBCM with JB7 & JD7 brakes (also 4 door SUVs w/ JB5 also w/Z60 or 4 door SUVs w/ JB5 also w/Z56) use GM 12474923. This might be found at this link: https://ebay.us/D3vt9G

For the C/K 3500 truck ABS EBCM with JB8 brakes use GM 12476000. This might be found at this link: https://ebay.us/BE4F9A

For the C3500 truck ABS BPMV with JF9 brakes use GM 12475491 and EBCM GM 12476002. This might be found at this link: https://ebay.us/utpopC

The ABS brake pressure switch GM 88983914 can be found at this link: https://ebay.us/cfnnOi

The ABS combination valve connecting tubes GM 12548294 may be found at this link: https://ebay.us/Duvq2T

The T-25 torx retaining screws for the ABS EBCM GM 12548267 may be found at this link: https://ebay.us/XmMpcv

For the 19mm adapter tubes LF (GM 19245416), RF (GM 19245417), and RR (GM 19245418) try this link: https://ebay.us/Gd418S

For the 19mm adapter tube o-ring GM 12548272, try this link: https://ebay.us/vV4aCr

The EBCM to BPMV gasket GM 12548260 may be found at this link: https://ebay.us/3sieDP

For the combination valve retaining bolts GM 12476150 and the BPMV to mounting bracket bolts GM 15634100, try this link: https://ebay.us/rPLH6x

The BPMV to mounting bracket bushings GM 15634102 and mounting bracket GM 12545901 try here: https://ebay.us/PxkOHl

The 1998 GM factory service manual may be found at this link: https://ebay.us/RTVa5F

Here's a link to find Tech2 scan tools: https://ebay.us/mVa83n

And finally, if you're looking for Cosmoline here's a link for that: https://ebay.us/rcrITR and on https://amzn.to/3ter5Er

And if I've saved you some $$ here, consider some coins for the coffee tip-jar! https://ko-fi.com/drshock

1995 1996 1997 1998 1999 2000 2001 2002

Chapters:
0:00 - Problem overview
0:39 - Replicating the two ABS problems
5:22 - ABS module components & brake RPO identification
9:50 - Diagnosing the DTC C0268
27:44 - Diagnosing the pull when braking
29:28 - Removing the ABS assembly (EHCU)
42:36 - Separating the mounting bracket
46:26 - Service manual overview
50:15 - ABS assembly teardown
55:54 - ABS parts across truck/van models
1:04:03 - Avoiding fitting leaks
1:05:15 - Installing replacement ABS assembly (EHCU)
1:10:56 - Automated BPMV bleed using Tech2
1:13:03 - Road test

#drshock #obstruck #obstrucks #4wal

Disclaimer: DrShock, the alias for the human content creator for this YouTube channel, is not responsible for any damages, injuries, losses, or liabilities associated with any repairs, upgrades, or maintenance performed on yours, or any other, vehicle whatsoever. No warranty, express or implied, is made as to the accuracy or completeness of any information provided within this channel. Viewing and using the “as-is" information of this channel is totally at your own risk. Always wear personal protection equipment and follow appropriate vehicle manufacturer service manual guidelines with original manufacturer parts only when performing any repairs, upgrades, or maintenance upon any vehicle.