ABS light is on?

1997 CHEVROLET SILVERADO
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STRUXGL
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I have a 97 Suburban with a 5.7 engine, 4x4,126,00miles.
When I first start driving in the morning, I have no speedomator reading and it seems it will not shift out of first gear. The ABS light is also on. After a couple of blocks of driving , it will shift gears and I have a seep reading, The ABS light is still on.
I stop, turn off the engine, and restart. The ABS light is sometimes off and sometimes on and it seems to shift OK and I have speed readings. It works this way untill the next morning and we do it all over again. It seems to shift OK after it is good and warm. The ABS light is mostly off at this point. Sometimes when I brake, I hear the pulsating sound like the ABS is braking and I'm on dry hard road.
Is there any connection between the shifting and ABS?
Any suggestions about the shifting and speedomator?
Any idea on the ABS light sometimes on and other times off?
Sep 18, 2007 at 12:03 AM
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RASMATAZ
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Could be the vehicle speed sensor-the computer uses it to determine speed and to command shifting solenoids for transmission to operate properly. This video will show you how to scan the ABS system.

https://youtu.be/rTtAnsOlZU4

Please run down this guide and report back.
Sep 18, 2007 at 2:56 AM
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JMDDFR
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Can you give me a couple of places to check regarding why my anti lock light comes on?

Thanks
Sep 2, 2020 at 12:03 PM (Merged)
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JACOBANDNICKOLAS
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Check the sensors at each wheel. Also, have the computer scanned. It may help determine where the problem is. Most parts stores will scan it for free.
Sep 2, 2020 at 12:03 PM (Merged)
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BORUCKI
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I have a 1995 diesel, 6.5 diesel turbo. Abs light is on, and trans will not shift. The truck does need a brake job also. I can't find a 1995 0bd1 code meter for a diesel.

If I do a brake job. do you this the abs will start working again or should I change the speed sensor.

I really want to get a meter...code meter for 1995 diesel. To check codes. Please HELP

John
Sep 2, 2020 at 12:03 PM (Merged)
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JACOBANDNICKOLAS
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You don't need a scanner. Jump the A and B terminals on the OBD plug and you can get the codes from the check engine light.

As far as the brakes, new brakes won't eliminate a ABS light. It most likely is an issue with a sensor. As far as the trans not shifting, that is a different issue. Is the speedo working?
Sep 2, 2020 at 12:03 PM (Merged)
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BORUCKI
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I don't know how to check this. Or were it is located. The speed sensor.

Can you recommend a code meter for a 1995 Chevy diesel obd1 ....

Thank you again.

John J Borucki



Sep 2, 2020 at 12:03 PM (Merged)
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BORUCKI
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OTC code meters, can't find a web site for the co. They say, they might have one that does OBD 1 and for a 1995 diesel. If you can recommend a code meter please do.
Sep 2, 2020 at 12:03 PM (Merged)
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JACOBANDNICKOLAS
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My memory isn't that good. LOL
Sep 2, 2020 at 12:03 PM (Merged)
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BORUCKI
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I called the co. they say the 3822 will read codes ....for a 1995 diesel....6.5 turbo.

I think I will first change the seed censor and see if corrects the problem.....

The OTC 3822 cost 799.00 From Milex....

let you know how I make out.

John
Sep 2, 2020 at 12:03 PM (Merged)
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JACOBANDNICKOLAS
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John:

That is a lot of money. I wouldn't spend it if you don't plan to keep the vehicle for a long time. You could pay someone to do it many times for you for a lot less.
Sep 2, 2020 at 12:03 PM (Merged)
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YAMAHARACIN
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So my truck can still stop but my ABS light is on and when i press my brakes they dont even do anything until it almost touchs the floor. When its off it touches the floor still but then if you pump it, it will get tighter. It does it when its on too but not as good. Any suggestions?
Sep 2, 2020 at 12:03 PM (Merged)
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BMRFIXIT
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Fill up the master cylinder with fluid and pump up the brakes
and check for leaks in the lines

*****************************************
need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm
Sep 2, 2020 at 12:03 PM (Merged)
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BORUCKI
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Ok, changed the speed sensor and been driving the truck. Everything was good till tonight. SBS light came on, and truck would not shift, turned the key on and off 4 times and abs light went off and truck shifted.

I do have found it , while changing VSS, a small antifreeze leak on a line going to the trans.

Truck drove good after VSS for one day. Please advise again.


John
Sep 2, 2020 at 12:03 PM (Merged)
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2CP-ARCHIVES
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ABS light came on a few weeks ago. How do I find the problem and make repair?
Sep 2, 2020 at 12:03 PM (Merged)
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SATURNTECH9
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Let's start with what codes do you have?
Sep 2, 2020 at 12:03 PM (Merged)
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STRETAR
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No codes
Sep 2, 2020 at 12:03 PM (Merged)
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SATURNTECH9
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Is the abs light still on while your driving?Also how and when did you check for codes?
Sep 2, 2020 at 12:03 PM (Merged)
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STRETAR
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Abs light stays on all the time. Had a friend with a reader plug in and show codes.
Sep 2, 2020 at 12:03 PM (Merged)
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SATURNTECH9
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Lets try to flash the codes out let me know what you find i posted how to bellow.
Sep 2, 2020 at 12:03 PM (Merged)
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STRETAR
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Thank you for the information. Sorry for the delay in responding.
I used a jumper as suggested and the reading I got was a 2- 5 flashing of the ABS light.
What next?
Sep 2, 2020 at 12:03 PM (Merged)
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SATURNTECH9
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So you got a code 25?
Sep 2, 2020 at 12:03 PM (Merged)
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STRETAR
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Correct, what does the code 25 stand for?
Sep 2, 2020 at 12:03 PM (Merged)
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KJEDI56
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The ABS light on my p/u has come on and won't go off. It blinks a code of 4 short and one long light, then repeats the sequence.
Sep 2, 2020 at 12:03 PM (Merged)
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ASEMASTER6371
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PROCEDURE
Diagnostic Trouble Codes (DTC) 's can be displayed by jumping terminals "A" and "H" of the Data Link Connector and observing the flashing of the "BRAKE" warning light. This should only be done when the brake lamp is "ON".
The terminals must be jumped for about 20 seconds before the code will begin to flash. Count the number of short flashes starting from the long flash. Include the long flash as a count. Sometimes the first count sequence will be short. However, subsequent flashes will be accurate. If there is more than one failure, only the first recognized code will be retained and flashed.

NOTES:

DTC's 6,9, and 10 will only turn the "BRAKE" lamp on while the fault exists. These are soft codes faults and can only be read with the Tech 1 scan tool.
Do not jump terminals "A" to "H" if the "BRAKE" lamp is not on. Jumping the terminals with the "BRAKE" lamp off will set a false DTC 9. This will turn the "BRAKE" lamp on and disable the antilock system.




As you can see, you may need a scan tool to track down the failure.

Roy
Sep 2, 2020 at 12:03 PM (Merged)
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STRETAR
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Can the ABS sensor need to be cleaned?
Sep 2, 2020 at 12:03 PM (Merged)
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SATURNTECH9
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It left front wheel speed sensor or circuit open.Unplug the left front speed sensor and measure the ohms reading of it.Compare it to the right front one let me know what you find?
Sep 2, 2020 at 12:03 PM (Merged)
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CSCHWAN91
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I have a 1997 Chevrolet Silverado Z71 with a 5.7 liter V8. For the past year, my ABS light comes on at various times and stays on until I turn off the truck and at times that doesn't work. When the light comes on, the cruise does not work, as well as, the fan blower and electronic four-wheel drive. Just wondering if this is a ignition switch problem.

I just came across a new problem. since the weather has gotten cold, my transmission is jumping out of overdrive at 60 mph. could this be the powertrain control module?
Sep 2, 2020 at 12:03 PM (Merged)
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BMRFIXIT
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[quote:53d3287064="cschwan91"]I have a 1997 Chevrolet Silverado Z71 with a 5.7 liter V8. For the past year, my ABS light comes on at various times and stays on until I turn off the truck and at times that doesn't work. When the light comes on, the cruise does not work, as well as, the fan blower and electronic four-wheel drive. Just wondering if this is a ignition switch problem.[/quote:53d3287064].


check the electric feed
sound like you're loosing the power supply look for a broken wire or loose conection
Sep 2, 2020 at 12:03 PM (Merged)
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