Another ABS Bleeding question

[megatronz0r]

I've purchased TWO vehicles where the title VIN number did not match the VIN plate on the vehicle.

In one case, someone had exchanged a "Z" for a "2", and in another I think it was an "I" for a "1". The rest of the numbers matched. The Highway Patrol inspected the cars, issued paperwork, and the title got corrected without much hassle.

In your case, I'd want to compare the VIN plate on the dash to the VIN on the title. There are "secret" VIN numbers stamped into the frame, and perhaps on the cowl/firewall on the lower right side, and probably other places as well. My '92 and '93 Luminas had VIN stickers on the fenders, trunk lid, and other easily-replaced parts.

You were right the vins don’t match not even a little bit

Vin shows 1998 not 1988 which explains a lot. Vincheck says not stolen and not salvaged. I guess I’ll go to the Secretary of State on Monday.

 

[Caman96]

 

[xXxPARAGONxXx]

To no one in particular: any time you purchase a vehicle, always compare the VIN on the title with the VIN on more than one point on the body, such as driver's side dash near window and driver's side door jamb. And God help you if you buy a vehicle without getting the [actual] title from the "owner". You may as well consider yourself having purchased stolen property.

 

[Caman96]

To no one in particular: any time you purchase a vehicle, always compare the VIN on the title with the VIN on more than one point on the body, such as driver's side dash near window and driver's side door jab. And God help you if you buy a vehicle without getting the [actual] title from the "owner". You may as well consider yourself having purchased stolen property.

+ Not really knowing what you have makes repairs a nightmare.

 

[Schurkey]

To no one in particular: any time you purchase a vehicle, always compare the VIN on the title with the VIN on more than one point on the body, such as driver's side dash near window and driver's side door jamb. And God help you if you buy a vehicle without getting the [actual] title from the "owner". You may as well consider yourself having purchased stolen property.

I've gotten to where I demand a "Bill of Sale", signed and dated by the seller(s), and I make 'em pull out the driver's license to assure their name matches-up. Two copies--one for me, one for them.

At least that way there's no question about me being involved in vehicle theft, I have documentation for who I got it from, and how much was paid. They have documentation that they're not responsible for the vehicle any more. Everyone's happy.

 

[tinfoil_hat]

This thread took a turn...

 

[18WheeledDemon]

I recently purchased a 1988 GMC GMT400 Singlec ab Short Bed 2wd that has been frankensteined to say the least. It has a 400sbc, 95 dash and seat and the rest appears to be 88. The guy i bought it from knew absolutely nothing about it.

Driving home i realized how sketchy the brakes really were so I replaced the master cylinder with the NBS model and i did Russell brake hoses.

Now i'm to the bleeding part and i have some sort of Kelsey-Hayes ABS unit that i've read are a nightmare to bleed or need to be taken to a dealer. Ive considered deleting the ABS but ive only found guides videos of the RWAL. I have also read that I can buy a scanner on amazon for about $100 that will bleed to brakes in OBD2 vehicles but with all the hackery on this truck i have no idea if my truck is OBD1 or OBD2.

OBD2 Scanner with ABS Auto Bleed FOXWELL NT630 Plus

So i guess my main questions are:
Did 1988 have this ABS (pictured below) as an available option
Is 1988 OBD1 or OBD2 (pictured below of what it looks like in my truck)
Are there any guides of removing this type of ABS and replacing it with a proportioning valve
Any additional information would be greatly appreciated i'm feeling a little overwhelmed currently.

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This is where things start getting weird... I am currently wasting money trying to figure out this universal Kelsey Hayes 4wal problem we're all having. When I say "weird", my 95 K1500 is OBD1 and we have the EXACT SAME Kelsey Hayes 4wal ABS Pump. We can literally trade. Yours is a 88 yet your diagnostic port is the shape of an OBD2 Port... Mine is the standard OBD1 Square shaped Diagnostic Port. I see where your confusion in "OBD 1or2" is coming from. Although, you are missing pins in that Port. I hope to solve this soon. I'm a fricken sadomasochist when it comes to solving problems.

 

[Caman96]

Some 95 GM cars and some of our trucks have an obd2 port BUT are still obd1. Talk about confusing.

 

[tinfoil_hat]

'95 is the oddball year.

 

[Erik the Awful]

Did GM put OBD1.5 on these trucks?

On-board diagnostics - Wikipedia

en.wikipedia.org