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1994 grand cherokee brake problem
I am hoping someone out there could help me out. when i would be braking,
just before stopping my brakes would grab and the abs would kick in. it was quite a hard stop. after a few days of this the abs light came on and is on steady. the problem went away but the abs light is still on. i am assuming that with the abs light on, the unit is disabled. if anyone has an idea what would cause the brakes to grab like that, it would be appreciated. |
Re: 1994 grand cherokee brake problem
There should be a fault code stored in the system. Bad or misaligned wheel
sensor maybe? Bad connection to the ABS computer. oil "bpb" <bpbeggan@nauticom.net> wrote in message news:f99825b0f6b53447d8de99d9e4db4141@localhost.ta lkaboutautos.com... >I am hoping someone out there could help me out. when i would be braking, > just before stopping my brakes would grab and the abs would kick in. it > was quite a hard stop. after a few days of this the abs light came on and > is on steady. the problem went away but the abs light is still on. i am > assuming that with the abs light on, the unit is disabled. if anyone has > an idea what would cause the brakes to grab like that, it would be > appreciated. > |
Re: 1994 grand cherokee brake problem
There should be a fault code stored in the system. Bad or misaligned wheel
sensor maybe? Bad connection to the ABS computer. oil "bpb" <bpbeggan@nauticom.net> wrote in message news:f99825b0f6b53447d8de99d9e4db4141@localhost.ta lkaboutautos.com... >I am hoping someone out there could help me out. when i would be braking, > just before stopping my brakes would grab and the abs would kick in. it > was quite a hard stop. after a few days of this the abs light came on and > is on steady. the problem went away but the abs light is still on. i am > assuming that with the abs light on, the unit is disabled. if anyone has > an idea what would cause the brakes to grab like that, it would be > appreciated. > |
Re: 1994 grand cherokee brake problem
There should be a fault code stored in the system. Bad or misaligned wheel
sensor maybe? Bad connection to the ABS computer. oil "bpb" <bpbeggan@nauticom.net> wrote in message news:f99825b0f6b53447d8de99d9e4db4141@localhost.ta lkaboutautos.com... >I am hoping someone out there could help me out. when i would be braking, > just before stopping my brakes would grab and the abs would kick in. it > was quite a hard stop. after a few days of this the abs light came on and > is on steady. the problem went away but the abs light is still on. i am > assuming that with the abs light on, the unit is disabled. if anyone has > an idea what would cause the brakes to grab like that, it would be > appreciated. > |
Re: 1994 grand cherokee brake problem
There should be a fault code stored in the system. Bad or misaligned wheel
sensor maybe? Bad connection to the ABS computer. oil "bpb" <bpbeggan@nauticom.net> wrote in message news:f99825b0f6b53447d8de99d9e4db4141@localhost.ta lkaboutautos.com... >I am hoping someone out there could help me out. when i would be braking, > just before stopping my brakes would grab and the abs would kick in. it > was quite a hard stop. after a few days of this the abs light came on and > is on steady. the problem went away but the abs light is still on. i am > assuming that with the abs light on, the unit is disabled. if anyone has > an idea what would cause the brakes to grab like that, it would be > appreciated. > |
Re: 1994 grand cherokee brake problem
bpb wrote:
> I am hoping someone out there could help me out. when i would be > braking, just before stopping my brakes would grab and the abs would > kick in. it was quite a hard stop. after a few days of this the abs > light came on and is on steady. the problem went away but the abs > light is still on. i am assuming that with the abs light on, the > unit is disabled. if anyone has an idea what would cause the brakes > to grab like that, it would be appreciated. The ABS just before stop is due to one of two things. 1) failing ABS sensor (doesn't have to be failed, just marginal) 2) dirty ABS computer connector 2 usually shows as a failure as you go over a bump with or without the brakes on. First thing to do is to clean that connector. --- Clean the connector on your ABS computer. http://revbeergoggles.com/Fixes/computer-abs.jpg Get a plastic bag, paper towel, a q-tip or ten, a zip tie and some contact cleaner that's safe for plastic and a bit of dilectric grease (sparkplug boot grease) Disconnect the battery Lift the latch and disconnect the harness Take the airbox top and filter off. (this is your work sink) Put the plastic bag in the airbox bottom, and some paper towels now move the connector over the sink and open the shield, tap out all the dirt and spray with cleaner (make sure it doesn't get on the paint and if it does wipe it up pronto, it's like paint remover) Clean the contacts on the ABS computer. Put the shell back on and use the ziptie if the one on there broke. Pack the dilectric grease into the connector and put it back on the computer. This fixes about 80% of all ABS light problems --- If you still get the problem after this you have a couple of options. First remove, clean, and put dilectric grease on the front sensor connections. And if that fails your going to have to pay for an ABS diagnositcs to locate the bad sensor (usually a front wheel unit) or replace them both at once. There isn't a good way to check these things without the proper scantool. -- -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors Banks Header - and BEER, in the fridge! |
Re: 1994 grand cherokee brake problem
bpb wrote:
> I am hoping someone out there could help me out. when i would be > braking, just before stopping my brakes would grab and the abs would > kick in. it was quite a hard stop. after a few days of this the abs > light came on and is on steady. the problem went away but the abs > light is still on. i am assuming that with the abs light on, the > unit is disabled. if anyone has an idea what would cause the brakes > to grab like that, it would be appreciated. The ABS just before stop is due to one of two things. 1) failing ABS sensor (doesn't have to be failed, just marginal) 2) dirty ABS computer connector 2 usually shows as a failure as you go over a bump with or without the brakes on. First thing to do is to clean that connector. --- Clean the connector on your ABS computer. http://revbeergoggles.com/Fixes/computer-abs.jpg Get a plastic bag, paper towel, a q-tip or ten, a zip tie and some contact cleaner that's safe for plastic and a bit of dilectric grease (sparkplug boot grease) Disconnect the battery Lift the latch and disconnect the harness Take the airbox top and filter off. (this is your work sink) Put the plastic bag in the airbox bottom, and some paper towels now move the connector over the sink and open the shield, tap out all the dirt and spray with cleaner (make sure it doesn't get on the paint and if it does wipe it up pronto, it's like paint remover) Clean the contacts on the ABS computer. Put the shell back on and use the ziptie if the one on there broke. Pack the dilectric grease into the connector and put it back on the computer. This fixes about 80% of all ABS light problems --- If you still get the problem after this you have a couple of options. First remove, clean, and put dilectric grease on the front sensor connections. And if that fails your going to have to pay for an ABS diagnositcs to locate the bad sensor (usually a front wheel unit) or replace them both at once. There isn't a good way to check these things without the proper scantool. -- -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors Banks Header - and BEER, in the fridge! |
Re: 1994 grand cherokee brake problem
bpb wrote:
> I am hoping someone out there could help me out. when i would be > braking, just before stopping my brakes would grab and the abs would > kick in. it was quite a hard stop. after a few days of this the abs > light came on and is on steady. the problem went away but the abs > light is still on. i am assuming that with the abs light on, the > unit is disabled. if anyone has an idea what would cause the brakes > to grab like that, it would be appreciated. The ABS just before stop is due to one of two things. 1) failing ABS sensor (doesn't have to be failed, just marginal) 2) dirty ABS computer connector 2 usually shows as a failure as you go over a bump with or without the brakes on. First thing to do is to clean that connector. --- Clean the connector on your ABS computer. http://revbeergoggles.com/Fixes/computer-abs.jpg Get a plastic bag, paper towel, a q-tip or ten, a zip tie and some contact cleaner that's safe for plastic and a bit of dilectric grease (sparkplug boot grease) Disconnect the battery Lift the latch and disconnect the harness Take the airbox top and filter off. (this is your work sink) Put the plastic bag in the airbox bottom, and some paper towels now move the connector over the sink and open the shield, tap out all the dirt and spray with cleaner (make sure it doesn't get on the paint and if it does wipe it up pronto, it's like paint remover) Clean the contacts on the ABS computer. Put the shell back on and use the ziptie if the one on there broke. Pack the dilectric grease into the connector and put it back on the computer. This fixes about 80% of all ABS light problems --- If you still get the problem after this you have a couple of options. First remove, clean, and put dilectric grease on the front sensor connections. And if that fails your going to have to pay for an ABS diagnositcs to locate the bad sensor (usually a front wheel unit) or replace them both at once. There isn't a good way to check these things without the proper scantool. -- -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors Banks Header - and BEER, in the fridge! |
Re: 1994 grand cherokee brake problem
bpb wrote:
> I am hoping someone out there could help me out. when i would be > braking, just before stopping my brakes would grab and the abs would > kick in. it was quite a hard stop. after a few days of this the abs > light came on and is on steady. the problem went away but the abs > light is still on. i am assuming that with the abs light on, the > unit is disabled. if anyone has an idea what would cause the brakes > to grab like that, it would be appreciated. The ABS just before stop is due to one of two things. 1) failing ABS sensor (doesn't have to be failed, just marginal) 2) dirty ABS computer connector 2 usually shows as a failure as you go over a bump with or without the brakes on. First thing to do is to clean that connector. --- Clean the connector on your ABS computer. http://revbeergoggles.com/Fixes/computer-abs.jpg Get a plastic bag, paper towel, a q-tip or ten, a zip tie and some contact cleaner that's safe for plastic and a bit of dilectric grease (sparkplug boot grease) Disconnect the battery Lift the latch and disconnect the harness Take the airbox top and filter off. (this is your work sink) Put the plastic bag in the airbox bottom, and some paper towels now move the connector over the sink and open the shield, tap out all the dirt and spray with cleaner (make sure it doesn't get on the paint and if it does wipe it up pronto, it's like paint remover) Clean the contacts on the ABS computer. Put the shell back on and use the ziptie if the one on there broke. Pack the dilectric grease into the connector and put it back on the computer. This fixes about 80% of all ABS light problems --- If you still get the problem after this you have a couple of options. First remove, clean, and put dilectric grease on the front sensor connections. And if that fails your going to have to pay for an ABS diagnositcs to locate the bad sensor (usually a front wheel unit) or replace them both at once. There isn't a good way to check these things without the proper scantool. -- -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors Banks Header - and BEER, in the fridge! |
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