No ABS, lift adjustment disabled on Ty
- Thread starter BlazerGT
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5678TA
New member
Re: No ABS, lift adjustment disabled on Ty
removing ABS means you need to pay attention to when you jam on the brake so you dont lock up the system and put you in a spin. other then that, no ill affects on stopping power. some argue that you get shorter stopping distances since stopping power is consistant versus having it pulse on/off.
rear lift adjustment means you need to watch your ass when you have the back loaded. its supposed to re-level the rear suspension to compensate for added weight. without it, backend sags and Ty's typically have soft rear suspension=bottom out. just be aware of rapid road level changes with anything of significant weight in the back.
removing ABS means you need to pay attention to when you jam on the brake so you dont lock up the system and put you in a spin. other then that, no ill affects on stopping power. some argue that you get shorter stopping distances since stopping power is consistant versus having it pulse on/off.
rear lift adjustment means you need to watch your ass when you have the back loaded. its supposed to re-level the rear suspension to compensate for added weight. without it, backend sags and Ty's typically have soft rear suspension=bottom out. just be aware of rapid road level changes with anything of significant weight in the back.
92TyLA
New member
Re: No ABS, lift adjustment disabled on Ty
So removing the lift adjustment on a stock ty will make it sag, any idea by how much it will sag?, is it recomended performance wise?. I know I dont need it and will like to remove, but if it has an effect on the bottoming out and nothing else. Is it worth removing it for weight reduction purpose?
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So removing the lift adjustment on a stock ty will make it sag, any idea by how much it will sag?, is it recomended performance wise?. I know I dont need it and will like to remove, but if it has an effect on the bottoming out and nothing else. Is it worth removing it for weight reduction purpose?
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5678TA
New member
Re: No ABS, lift adjustment disabled on Ty
removing it wont make it sag by itself. its when you load up the back, it will be like any other car with a loaded trunk. dont quote me but my understanding is that GM installed the lift adjustment knowing that the spring rate was too weak to load up to full capacity so this is a bandaid to add stiffness to the rear. its basically a variable pressure air shock. when the shock is compressed, air is added to the shocks to stiffen it up to compensate for the load. at no load, shock pressure is reduced, retaining stock ride quality.
you're not saving much weight by removing it. the sensor is all of a pound and compressor, maybe 5. personally, if it works, i'd leave it in. i've driven a full load and bottoming out is not fun. granted i had 4 people at close to 200lbs a piece, full tank of gas and 2" drop blocks.
as far as performance, i'll let someone else chime in. my Ty had stock replacement blazer/jimmy shocks when i got it. no factory air/lift adjust shocks. i have no experience with them. seems like most people swap em out for stiffer, performance minded shocks.
removing it wont make it sag by itself. its when you load up the back, it will be like any other car with a loaded trunk. dont quote me but my understanding is that GM installed the lift adjustment knowing that the spring rate was too weak to load up to full capacity so this is a bandaid to add stiffness to the rear. its basically a variable pressure air shock. when the shock is compressed, air is added to the shocks to stiffen it up to compensate for the load. at no load, shock pressure is reduced, retaining stock ride quality.
you're not saving much weight by removing it. the sensor is all of a pound and compressor, maybe 5. personally, if it works, i'd leave it in. i've driven a full load and bottoming out is not fun. granted i had 4 people at close to 200lbs a piece, full tank of gas and 2" drop blocks.
as far as performance, i'll let someone else chime in. my Ty had stock replacement blazer/jimmy shocks when i got it. no factory air/lift adjust shocks. i have no experience with them. seems like most people swap em out for stiffer, performance minded shocks.
Re: No ABS, lift adjustment disabled on Ty
I wish my 1991 (EBC-4) ABS was removed. I never drive in inclement weather or on a gravel roads so I don't need that junk. If you don't have ABS, it makes maintenance of the entire brake system a lot easier because it is nearly impossible to bleed the brake system with ABS unless you have a GM Tech 1 scan tool. If you do not bleed the ABS modulator when you bleed the rest of the system, you will always have a soft brake pedal ....or no brakes at all.
I wish my 1991 (EBC-4) ABS was removed. I never drive in inclement weather or on a gravel roads so I don't need that junk. If you don't have ABS, it makes maintenance of the entire brake system a lot easier because it is nearly impossible to bleed the brake system with ABS unless you have a GM Tech 1 scan tool. If you do not bleed the ABS modulator when you bleed the rest of the system, you will always have a soft brake pedal ....or no brakes at all.
dgoodhue
BuSTeD 4.3
Re: No ABS, lift adjustment disabled on Ty
I would guess most Typhoon owners remove the rear leveling suspension for two reasons: shock options and lowering the rear suspension. To lower the rear suspension and retain the load leveling would would need to modify the arm length (otherwise it would pump the shocks up to retain the stick ride height.
The Abs in our truck is prone to failur they are very sensitive to dirty brake fluid. I think the recommendation is to flush the brakes every couple years. 10 years ago it was pretty rare to find a functioning ABS. I am almost rear ended someone with mine (i had no lights but shortly after i did) so that is when I pulled mine out. My typhoon had an ABS functions properly, and worked a lot better than my Syclone. Anyways, if I had a SyTy with the abs light out, I would flush the brake fluid and test I the brakes in safe area in the rain. If they don't work right, toss/repair the abs as its a a hazard.
I would guess most Typhoon owners remove the rear leveling suspension for two reasons: shock options and lowering the rear suspension. To lower the rear suspension and retain the load leveling would would need to modify the arm length (otherwise it would pump the shocks up to retain the stick ride height.
The Abs in our truck is prone to failur they are very sensitive to dirty brake fluid. I think the recommendation is to flush the brakes every couple years. 10 years ago it was pretty rare to find a functioning ABS. I am almost rear ended someone with mine (i had no lights but shortly after i did) so that is when I pulled mine out. My typhoon had an ABS functions properly, and worked a lot better than my Syclone. Anyways, if I had a SyTy with the abs light out, I would flush the brake fluid and test I the brakes in safe area in the rain. If they don't work right, toss/repair the abs as its a a hazard.
Re: No ABS, lift adjustment disabled on Ty
If you replace the master cylinder or flush the brake system on a 1989-1994 Chevrolet / GMC S-truck that has EBC-4 ABS, DO NOT get air in the ABS modulator or you will need a GM Tech 1 scan tool to bleed the air out.. The Scan tool cycles the modulator as the system is being bled in order to remove air from the fluid passages and the accumulators in the ABS modulator. Don't take your truck to a auto repair shop to get the ABS bled because they probably do not have a GM Tech 1 scan tool either. The shop would not have one because they would not use a GM Tech 1 scan tool but once every ten or more years. Those GM Tech 1 scan tools are NOT cheap !
You cannot buy a rebuilt EBC-4 modulator because no parts supplier has any ABS modulator cores to rebuild. Cardone will rebuild your 1988 - 1994 GM ABS modulator for $800. The ABS system was improved in 1995-2001 GM vehicles and is not as sensitive to dirty fluid. The GM ABS system is the most hair-brained idea that GM has come up with. ABS braking systems were forced on automakers by the National Highway Traffic Safety Administration.
The idiots at the NHTSA got the idea for ABS brakes on automobiles from old steam locomotives that have a "dead-man's switch." Modern diesel-electric engines have an engineer but they also still have a brakeman (or a fireman to shovel coal into the firebox), as well as the dead-man's switch. The fireman or brakeman could stop the train and prevent a runaway if the engineer became incapacitated for some reason.
If you replace the master cylinder or flush the brake system on a 1989-1994 Chevrolet / GMC S-truck that has EBC-4 ABS, DO NOT get air in the ABS modulator or you will need a GM Tech 1 scan tool to bleed the air out.. The Scan tool cycles the modulator as the system is being bled in order to remove air from the fluid passages and the accumulators in the ABS modulator. Don't take your truck to a auto repair shop to get the ABS bled because they probably do not have a GM Tech 1 scan tool either. The shop would not have one because they would not use a GM Tech 1 scan tool but once every ten or more years. Those GM Tech 1 scan tools are NOT cheap !
You cannot buy a rebuilt EBC-4 modulator because no parts supplier has any ABS modulator cores to rebuild. Cardone will rebuild your 1988 - 1994 GM ABS modulator for $800. The ABS system was improved in 1995-2001 GM vehicles and is not as sensitive to dirty fluid. The GM ABS system is the most hair-brained idea that GM has come up with. ABS braking systems were forced on automakers by the National Highway Traffic Safety Administration.
The idiots at the NHTSA got the idea for ABS brakes on automobiles from old steam locomotives that have a "dead-man's switch." Modern diesel-electric engines have an engineer but they also still have a brakeman (or a fireman to shovel coal into the firebox), as well as the dead-man's switch. The fireman or brakeman could stop the train and prevent a runaway if the engineer became incapacitated for some reason.
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Throws
Active member
Re: No ABS, lift adjustment disabled on Ty
Actually, there's a pretty solid proceedure to getting the air out.
1: Using a baster, remove all the old fluid from the brake reservoir. Refill to line.
2: On each side of the side of the ABS unit is a bypass bolt. Break it open 1/4-1/2 turn.
3: Place 3 ABS drepressor clips (Kent-Moore No. J39177 or Wilmar W82010) over the rear of the combination valve,and 2 holding open the high-pressure accumulator bleed valves.
4: Holding the brake pedal down, open the top bleed screw on the right side first.
5: Close bleed screw, release pedal.
6: Wait 15 seconds (MUST!), check fluid level.
7: Repeat 4-6 until clean fluid and no air bubbles are seen.
8: When the right side is done on the module, repeat 4-7 with left side.
9: Close bypass bolts on each side.
10: Bleed remainder of system at wheel cylinders in this order: RR, LR, RF, LF. Remember to wait 15 seconds after you release the pedal before you reapply brakes during bleeding. This allows the system to recover fluid.
There you go!
-P
(Thanks to DaveP and some Kelsey-Hayes 4WAL articles I found online!)
Actually, there's a pretty solid proceedure to getting the air out.
1: Using a baster, remove all the old fluid from the brake reservoir. Refill to line.
2: On each side of the side of the ABS unit is a bypass bolt. Break it open 1/4-1/2 turn.
3: Place 3 ABS drepressor clips (Kent-Moore No. J39177 or Wilmar W82010) over the rear of the combination valve,and 2 holding open the high-pressure accumulator bleed valves.
4: Holding the brake pedal down, open the top bleed screw on the right side first.
5: Close bleed screw, release pedal.
6: Wait 15 seconds (MUST!), check fluid level.
7: Repeat 4-6 until clean fluid and no air bubbles are seen.
8: When the right side is done on the module, repeat 4-7 with left side.
9: Close bypass bolts on each side.
10: Bleed remainder of system at wheel cylinders in this order: RR, LR, RF, LF. Remember to wait 15 seconds after you release the pedal before you reapply brakes during bleeding. This allows the system to recover fluid.
There you go!
-P
(Thanks to DaveP and some Kelsey-Hayes 4WAL articles I found online!)
Last edited:
Throws
Active member
Re: No ABS, lift adjustment disabled on Ty
To add: The biggest killer is to press the wheel cylinder back in during a pad change *without* opening the bleed screw on the caliper. This forces the contaminated fluid at the caliper back into the ABS unit, clogging the screens and killing the module.
-P
To add: The biggest killer is to press the wheel cylinder back in during a pad change *without* opening the bleed screw on the caliper. This forces the contaminated fluid at the caliper back into the ABS unit, clogging the screens and killing the module.
-P
Black Knight
I Glow Therefore I am
Re: No ABS, lift adjustment disabled on Ty
It should absolutely not prevent you from buying it.
Heck I would be MORE apt to buy it because it would save me the time of having to do it myself. Speaking of that I have a Sy I need to go gut the ABS out of right now :lol:
It should absolutely not prevent you from buying it.
Heck I would be MORE apt to buy it because it would save me the time of having to do it myself. Speaking of that I have a Sy I need to go gut the ABS out of right now :lol:
Flyin Ryan
hated cuz he drives fords
Re: No ABS, lift adjustment disabled on Ty
First gen abs and they suck so it's common to see these trucks with it disabled or removed. My typhoon would randomly start pulsating like i was on ice but wasnt. My syclone's died on me and the brakes went all soft/spongy to the point where they would hardly be enough to stop at a decent speed. I deleted both and don't miss and never regretted it
First gen abs and they suck so it's common to see these trucks with it disabled or removed. My typhoon would randomly start pulsating like i was on ice but wasnt. My syclone's died on me and the brakes went all soft/spongy to the point where they would hardly be enough to stop at a decent speed. I deleted both and don't miss and never regretted it
kmack
Donating Member
Re: No ABS, lift adjustment disabled on Ty
Speaking from experience.ABS brakes saved my ---.
Without steering control on a 70 mph panic stop(deer ran out nowhere to go) I would have been in the ditch or through the centre barrier.
I drove the car to a stop with total steering control still clipped the deer because I had no more pavement to utilize.
DON'T BAD MOUTH ABS simply cause it feels weird at times or you don't understand it.
It only engages in panic or slipppery (skidding) situations and it works like a hot damn.
Well worth any maintenance problems to keep it functional.
Speaking from experience.ABS brakes saved my ---.
Without steering control on a 70 mph panic stop(deer ran out nowhere to go) I would have been in the ditch or through the centre barrier.
I drove the car to a stop with total steering control still clipped the deer because I had no more pavement to utilize.
DON'T BAD MOUTH ABS simply cause it feels weird at times or you don't understand it.
It only engages in panic or slipppery (skidding) situations and it works like a hot damn.
Well worth any maintenance problems to keep it functional.
warmpancakes
New member
Re: No ABS, lift adjustment disabled on Ty
first rule of a deer in front of you is dont hit the brakes drive around or through it
first rule of a deer in front of you is dont hit the brakes drive around or through it
Throws
Active member
Re: No ABS, lift adjustment disabled on Ty
ABS would be well and good if it worked. There are far to many people here with first hand experience of the ABS not tripping, or tripping prematurely (non skid) and killing all the line pressure. Not to mention the TSB, the recalls, and the NTSB investigation.
Hell... read here:
http://www.syty.net/forums/showthread.php?t=89269&page=2
IMHO (and many others): the ABS system is a accident waiting to happen, and troublesome when it has issues.
-P
ABS would be well and good if it worked. There are far to many people here with first hand experience of the ABS not tripping, or tripping prematurely (non skid) and killing all the line pressure. Not to mention the TSB, the recalls, and the NTSB investigation.
Hell... read here:
http://www.syty.net/forums/showthread.php?t=89269&page=2
IMHO (and many others): the ABS system is a accident waiting to happen, and troublesome when it has issues.
-P
powercat6
Active member
Re: No ABS, lift adjustment disabled on Ty
Even the manufacturer agrees; third photo in this post.
http://www.syty.net/forums/showpost.php?p=956361&postcount=57
Even the manufacturer agrees; third photo in this post.
http://www.syty.net/forums/showpost.php?p=956361&postcount=57
Throws
Active member
Re: No ABS, lift adjustment disabled on Ty
Now THAT is a testament to it's suckiness! :tup:
-P
Now THAT is a testament to it's suckiness! :tup:
-P
kmack
Donating Member
Re: No ABS, lift adjustment disabled on Ty
70 mph / 2 lanes / 4' concrete barrier left / 15' ditch to right
1987 Convertible Corvette
Top down
Tried to drive around, no time !!!!!
Deer bolted out of bush 30' to the right
No Friggen way I was driving through it. (land in the front seat)
Damage totalled $35.00 for new headlite pivot.
Damage to deer Nasssssty !!!!!
Once again thank you ABS brakes !!!!!!!
One of those "you had to be there" moments
70 mph / 2 lanes / 4' concrete barrier left / 15' ditch to right
1987 Convertible Corvette
Top down
Tried to drive around, no time !!!!!
Deer bolted out of bush 30' to the right
No Friggen way I was driving through it. (land in the front seat)
Damage totalled $35.00 for new headlite pivot.
Damage to deer Nasssssty !!!!!
Once again thank you ABS brakes !!!!!!!
One of those "you had to be there" moments
Typhoon-Dennis
New member
I'm going with Rancho 9000RS on The rearend with no Problems. They work great