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1998 GMC Sierra 1500 4x4 5.0 litre - just installed front left ABS speed sensor harness. old one completly sheared. ABS light on instrument panel went off. drove truck 100 ft down street, ABS now comes back on. shut off truck, turn back on, ABS light is out. drive down street, ABS light comes back on? please help

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  • Garry W Lysak Nov 04, 2012

    ABS only comes on when driven 1/2 a block. light goes when put in park?

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  • Expert
  • 54 Answers

Gmc envoy i had done the same wound up replacing all four wheel brake pads and light stayed off

Posted on Nov 02, 2012

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6ya6ya
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Posted on Jan 02, 2017

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fastboyz
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SOURCE: The rear problem with a 1999 gmc sierra truck

do you know if you have a limited slip rear diff?
if you do your grease is worn out or if the fluid was replaced it need to have a friction modifier put in the diff (can be found at any auto part stores.)

if its not a limited slip diff you might have spider gears going bad. then you need to remove the cover on the diff and inspect your spider gears2f73bce.jpg b440737.jpgand these are the spider gears
b87d88d.jpgand this is what a limited slip looks like
good luck
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thanks
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Posted on Nov 15, 2008

awcforever
  • 359 Answers

SOURCE: 2000 GMC Sierra 1500 ABS and Brake lights

Have you by chance checked your fluid? If not, you may want to do that, it could show that you need brakes if it is low. If that doesn't do it, the mechanic may be right about a sensor, but just the wrong one. Hope that helps.

Posted on Feb 15, 2009

  • 1 Answer

SOURCE: 1998 Dodge Grand Caravan. Whenever

Reports say that this can be caused by cold solder connections in the centre instrument panel where the A/C controls are. Electrical system issue here manifests itself in instrument cluster. Fix is to remove 4 screws to access A/C stuff. Look for burnt or loose wiring / terminals on connectors in this area.. Re-solder or obtain used replacemnt terminal if needed, from junk yard. Mine is 1999 Grand Caravan. Intermittent failures then permanent with instrument cluster.

Posted on Nov 04, 2009

jturcotte
  • 8270 Answers

SOURCE: 1998 gmc Sierra Engine light

Hi, there are a number of trouble codes associated with the O2 sensors. Some indicate a sensor failure and others indicate a different problem. Can you tell me the trouble code you are getting?

Posted on Jan 14, 2011

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What are the probable causes of DTCs C0222, C0226, and C0237?


Brent, Check and clean connections(use electronic contact cleaner), make sure wires are not damaged. Check grounds from EBCM controller. Check links below and don't be afraid to google search for more info.
C 0222 Missing Right Front Speed Signal
C 0226 Missing Left Front Speed Signal
- Faulty Right/Left Front Speed Sensor
- Right/ Left Front Speed Sensor harness is open or shorted
- Right/ Left Front Speed Sensor circuit poor electrical connection
- Faulty EBCM

C 0237 Erratic rear speed signal
- Faulty Rear Speed Sensor
- Rear Speed Sensor harness is open or shorted
- Rear Speed Sensor circuit poor electrical connection
- Faulty EBCM


How fixed Chevy with an Abs and Brake light on

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwi0i8zz5YzLAhWD74MKHffwDLQQtwIIITAC&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DR_5WZUebDx8&usg=AFQjCNHimqe_Fje8AySjD5N0Wh8z8dQuuw

How To Install Replace Front ABS Sensor and Harness 2000 06 Chevy Suburban...

Feb 23, 2016 | 2003 Chevrolet Tahoe

2 Answers

Speedometer doesn't work


You might try an oil pressure sending unit, first making sure the connector and harness are okay. I'm not sure, but I think there is a VSS Sensor as well, or vehicle speed sensor. Check the connector and wiring. If its okay, try a sensor. Good luck, hope this helps.

Sep 15, 2014 | 1998 GMC Sierra

1 Answer

ABS and BRAKE light on


Hi Timothy:
You will want to have it scanned for any trouble codes to see what area the problem may be in. Just let us know what the code(s) are and we can go from there.

The only thing that I can figure is that it may be that the ABS is activating at low speeds, as there is a bulletin that mentions that with no trouble codes. Wheel speed sensors, dirty.

Bulletin No.: 02-05-25-006B
Date: January 05, 2006
TECHNICAL
Subject: Antilock Brake (ABS) Activation At Low Speeds (Clean Wheel Speed Sensor Mounting Surface)

Models:
1999-2000 Cadillac Escalade
1995-1999 Chevrolet Silverado (Old Style)
1995-2000 Chevrolet Suburban, Tahoe (Old Style)
1995-2003 Chevrolet Astro Van, Blazer, S10
1995-1999 GMC Sierra (Old Style)
1995-2000 GMC Yukon, Yukon XL (Old Style)
1995-2001 GMC Envoy, Jimmy
1995-2003 GMC Safari Van, Sonoma
1995-2001 Oldsmobile Bravada

Supercede: This bulletin is being revised to update the correction and warranty information. Please discard Corporate Bulletin Number 02-05-25-006A (Section 05 - Brakes).

Condition: Some customers may comment on ABS activation at low speeds, usually below 8 km/h (5 mph). Upon investigation, the technician will find no DTCs set.

Cause: The cause of this condition may be an increased air gap between the wheel speed sensor and the hub reluctor ring due to rust and debris built up on the sensor mounting surface.

Correction:
Measure AC voltage and clean wheel speed sensor mounting surfaces.
1. Raise the vehicle on a hoist.
2. Disconnect both the front wheel speed sensor harness connectors.
3. Place a DVM across the terminals of each sensor connector.
4. Rotate the wheel with hand speed and measure the ACmV's. The reading should be at least 350 ACmV's.
5. If the reading is between 200 and 350 ACmV's, remove the wheel, caliper and rotor in order to gain access to the speed sensor.
6. Remove the wheel speed sensor and plug the hole to prevent debris from falling into the hub during service.
7. Clean the wheel speed sensor mounting surface using a wire brush, sand paper, emery cloth, ScotchBrite(TM) or other suitable material. Be sure to thoroughly clean the wheel speed sensor surface. There should be no rust or corrosion.
8. Check the sensor head to determine if it has been warped/distorted due to the corrosion build up or other causes. Check the mounting surface on the sensor head for flatness by placing it on the edge of a metal machinists scale or other suitable straight edge to measure the flatness. Check the sensor for flatness in multiple (minimum 3) positions/directions. If the sensor head is distorted, replace the sensor.
9. Apply (spray) two thin coats of the specified rust penetrating lubricant (corrosion inhibitor) to the complete sensor mounting surface on the bearing hub. Allow to dry for 3-5 minutes between coats. Use ONLY Rust Penetrating Lubricant, P/N 89022217 (Canadian P/N 89022218).
10. When the corrosion inhibitor is dry to the touch (about 10 minutes), apply a thin layer of bearing grease to the hub surface and sensor 0-ring prior to sensor installation. Use ONLY Wheel Bearing Lubricant, P/N 01051344 (Canadian P/N 993037).
11. Install either the original sensor or a new one in the hub and secure the sensor. Ensure that the sensor is seated flush against the hub.
12. Install the rotor, the caliper and the wheel.
13. Place the DVM across the sensor terminals and recheck the voltage while rotating the wheel by hand. The voltage should now read at least 350 ACmV's.

Hope this helps; also keep in mind that your feedback is important and I will appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Dec 21, 2011 | 2001 Chevrolet Blazer

1 Answer

1993 gmc sierra 1500 abs brake light on


the most common cause is wheel speed sensor or sensor wiring not reading proper wheel speed.it is also possible the reluctor wheel inside front bearing is clogged with rust and debris and unable to send magnetic pulse. This can be tested with scanner to determine wheel in question.ohm meter can be used to test sensor and reluctor pulse.

Nov 28, 2010 | 1993 GMC Sierra K1500

1 Answer

ABS problem with GMC 2002 Sierra


its a low speed abs activation the problem is in the front sensors they need to be cleaned or replaced they [or one] probably has some corrosion on the sensor --[the 99 chevy tahoes had a limited recall over this issue and the fix was to remove and clean the abs sensor or if to corroded replace ] this problem doesnt set off an abs code or trouble light also sometimes the abs will activate by itself at under 4 mph without even touching brake

May 15, 2010 | 2002 GMC Sierra

1 Answer

Abs problem


check for warped rotors

Oct 02, 2009 | 2005 Chevrolet Silverado

1 Answer

Truck will ot shift and speedometer stopped working too


Have somebody check for trouble codes.Look for possible speed sensor codes.The speed sensor is a input to both trans and abs.

Aug 06, 2009 | 1998 GMC Sierra

2 Answers

Brake pedal vibrates while braking and doesent stop right away


There's speed sensors at each wheel. You may have got some contamination in front of one of them... sounds like the abs is trying to compensate for un equal speed at each wheel... and something may be blocking a proper read at one of the wheels...

Jul 23, 2009 | 2002 GMC Sierra 1500

2 Answers

2001 GMC SIERRA . ABS LIGHT STAYS ON


Wheel speed sensors misadjusted, damaged , or metal shavings and other debree, since they are magnetic can give false readings from one of the wheel circuits. Over sized tires can give of false speed readings as well. there are many other causes including bad relay, control module, e.t.c. It is best to have the proper scan tool to diagnose an ABS problem

Jul 08, 2009 | 2001 GMC Sierra Crew Cab

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