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 ABS Issue?
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Author Previous Topic: New Motor Topic Next Topic: help! antifreeze leak  

GMCTurbo
Starting Member



Posted - October 16 2007 :  2:09:40 PM  Show Profile  Reply with Quote
So this morning, I'm tearing down the wet leaves covered road and slam on the brakes. I slide on the leaves and ABS tries to kick in. Pedal goes to the floor, no pulsing, and I get no brakes.

Brake and ABS warning lights come on and stay on.

Brakes come back under normal operation.

I try to engage ABS again and pedal goes to floor, no brake pressure.

I've got full fluid in my master cylinder (though it's dirty) with no leaks, all vacuum lines are attached.

Any ideas? This may be the first time I've ever engaged ABS on my truck. I can't remember ever doing it before.

I'll pull the codes when I get home.
Peter W.
'93 Ty - black

Country: USA | Posts: 37

GMCTurbo
Starting Member



Posted - October 16 2007 :  2:36:46 PM  Show Profile  Reply with Quote
So I figured I'd pull the code now while it's still light out. It's throwing a code 62...

<i>
Code 41 through 66 4WAL control unit or motor circuit Check for a loose ground connection at the motor circuit. Clear the code and drive the vehicle. If any of these codes return, the EHCU valve may be faulty.
</i>

I don't seem to have any loose grounds and I pulled and reconnected all wiring to the ABS units so I'll see if I can reproduce on my way home.


Peter W.
'93 Ty - black

Country: USA | Posts: 37 Go to Top of Page

GMCTurbo
Starting Member



Posted - October 16 2007 :  2:39:35 PM  Show Profile  Reply with Quote
Just found this article... http://www.asashop.org/autoinc/aug2000/techtips.htm

internet self help is great isn't it? :-)


Peter W.
'93 Ty - black

Country: USA | Posts: 37 Go to Top of Page

Paul
Site Admin



Posted - October 16 2007 :  11:04:27 PM  Show Profile  Visit Paul's Homepage  Send Paul an AOL message  Send Paul an ICQ Message  Click to see Paul's MSN Messenger address  Reply with Quote
I think I have another ABS just sitting around if you want to try it. I bought it for my old white ty. The ABS light on my Black ty is on all the time. I might eventually use it to see if it will make it go away. If you want to barrow it to see if it fixes your problem, let me know.

Paul Schwab
93 Black/Black Typhoon #424
NWSTP Site Admin
Kirkland, WA

Country: USA | Posts: 506 Go to Top of Page

Roland
New Member

Posted - October 19 2007 :  07:04:25 AM  Show Profile  Reply with Quote
hey Peter;

For what it's worth, I suggest disconnecting the wiring which will dissable the ABS. Brakes still working normally and ALWAYS. Many locals have had accidents or near accidents (myself) when the ABS was connected but would not work. Uneven, washboard roads, gravel, water, snow... anything but hard dry pavement can cause ABS to fail. I yanked it completely on the Sy, and have it disconnected on the Ty. NO brake issues on either since. With connected, it will happen again.


Roland
Issaquah WA
http://www.netsnapshot.com/pcw/b?KEY=9&ACCOUNT=2412

Country: | Posts: 94 Go to Top of Page
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