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Old 11-26-2007, 12:36 AM
DAVE7695 DAVE7695 is offline
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1998 Burb jerking -abs light came on

I was driving my 1998 Burb, when all of a sudden it started to jerk and the abs light came on. I threw it into Neutral and motor seemed to be running ok with abs light still on. But when i put it back into gear it would jerk again. Has any one ever came across this problem. I don't know if this is releated but the 4wd does not engage when I press any button other than the 2wd button it flashes. ( the Burb was in 2WD when this problem happened)
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Old 11-26-2007, 09:07 AM
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Re: 1998 Burb jerking -abs light came on

You need to find a ABS capable scanner and read codes.
Also read the codes after the light comes on before shutting key off.
Key off will clear a lot of ABS codes.
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Last edited by MT-2500; 11-26-2007 at 04:32 PM.
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Old 11-26-2007, 09:25 AM
DAVE7695 DAVE7695 is offline
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Re: 1998 Burb jerking -abs light came on

I will do that, quick question does abs and transfercase work together?
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Old 11-26-2007, 09:40 AM
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Re: 1998 Burb jerking -abs light came on

In most cases a ABS code will disable 4W.
Need codes for more info or help with it.
MT
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Old 11-26-2007, 02:56 PM
DAVE7695 DAVE7695 is offline
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Re: 1998 Burb jerking -abs light came on

codes are

co237
co281
co235

I have a Snapon mt 2500, I purchased it used for my own use. I am newbie at using it. I only use it for code retrival.. There are no codes for engine.
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Old 11-26-2007, 04:32 PM
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Re: 1998 Burb jerking -abs light came on

235 and 237 codes are for the rear speed sensor or circuit problem.

code 281 is stop light switch or circuit problem.
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Old 11-26-2007, 06:51 PM
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Re: 1998 Burb jerking -abs light came on

what would be the next step?
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Old 11-26-2007, 07:19 PM
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Smile Re: 1998 Burb jerking -abs light came on

thanks for your time in trying to help me solve this problem..
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Old 11-27-2007, 08:20 AM
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Re: 1998 Burb jerking -abs light came on

You have two codes for a speed sensor or circuit.
And if you have a snap on scanner.
Check out the speed sensor or circuit or wiring.
You can watch the MPH reading in scanner and see if it is doing anything.

All data online sub or a good factory repair manual gives the repair flow charts for the codes.
Go threw the repair flow chart for the codes.
http://www.alldata.com/products/diy/index.html

Off hand I would say you have a bad rear speed sensor on the transfer case.
But the sensor is in the 100-150$ range
So it needs testing before throwing parts at it.
Also clear codes and see what returns and test it when it is acting up.
For the brake light switch code I would clear it and see if it returns or you can watch brake light switch on and off in scanner data.
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