ABS
11 posts • Page 1 of 1
ABS
Hi
I'm italian and I speak english orribly, then don't laught, please.
Three years ago I buied a fiesta turbo '91. Now it has 75000 km and there is a problem: the ABS (or ALB for Ford) warning-light is turning on/off very fast and the rear weels are blocking even if I push softly the brake.
Someone can help me (also to write english better ) ?
I'm italian and I speak english orribly, then don't laught, please.
Three years ago I buied a fiesta turbo '91. Now it has 75000 km and there is a problem: the ABS (or ALB for Ford) warning-light is turning on/off very fast and the rear weels are blocking even if I push softly the brake.
Someone can help me (also to write english better ) ?
- Fra
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- Location: Italy
- crazy.george
- Elite Post Master
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- Location: Home of..Jonny Vegas!!
Also if the rear brakes are locking up have you fitted the ABS bias valves that are mounted to the underside of the car just behind the petrol tank and have rods to connect to the rear beam to compensate for loads in the back. It sounds like this could be either missing or out of adjustment.
As for the ABS light it definately sounds like you need to tighten the belts by adjusting the modulators.
Regards,
Stephen
As for the ABS light it definately sounds like you need to tighten the belts by adjusting the modulators.
Regards,
Stephen
- Quantum
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- Joined: Thu Jan 01, 1970 1:00 am
- Location: Surrey
Thanks.
Last week I tried to check the belt tension from the hole of the switch and I see that is very soft: pushing it (the belt), it stop about 1.5 - 2 cm. I check only one belt, then I don't know if it's normal. It's normal that is so soft? I suppose yes because the switch measure the tension of belt when the car is running or the wheel is blocking and so, turn on/off the abs. Or no?
Another question: how the abs do to check the rear wheel? I don't find no one sensor or belt. Maybe Quantum tell about regulator of braking at the rear?
Last week I tried to check the belt tension from the hole of the switch and I see that is very soft: pushing it (the belt), it stop about 1.5 - 2 cm. I check only one belt, then I don't know if it's normal. It's normal that is so soft? I suppose yes because the switch measure the tension of belt when the car is running or the wheel is blocking and so, turn on/off the abs. Or no?
Another question: how the abs do to check the rear wheel? I don't find no one sensor or belt. Maybe Quantum tell about regulator of braking at the rear?
- Fra
- Newbie Poster
- Posts: 6
- Joined: Wed Oct 02, 2002 11:17 pm
- Location: Italy
As I said really mate. If you look under the rear of the car you should see 2 arms coming off the rear beam near to the middle. These should be connected to a pair of valves that the brake pipes run through. These adjust the valve and brake force distributed to the rear brakes depending on the load in the back of the car.
On cars with ABS these replace the bias valves that are usually mounted near the servo in the engine bay.
Cananyone with a digital camera handy take a photo of these? I won't be able to get hold of a digital camera for at least 3 weeks.
Regards,
Stephen
On cars with ABS these replace the bias valves that are usually mounted near the servo in the engine bay.
Cananyone with a digital camera handy take a photo of these? I won't be able to get hold of a digital camera for at least 3 weeks.
Regards,
Stephen
- Quantum
- Senior Poster
- Posts: 427
- Joined: Thu Jan 01, 1970 1:00 am
- Location: Surrey
No photo, thanks. I understand. My mechanic knowledge is better that english For my fiesta turbo I built a pop off, a two stage overboost, an electronic thermostat and many others things! OOOps, I give myself too airs...
This evening I go to adjust the belt tension.
Maybe the rear wheels are blocking for a problem indipendent from the abs. Maybe the suspension lowered take in error the regulator of braking. This week end I'll try to lower the 2 "untie-head bolt" (??? "testa a snodo" ???) to decrease the braking at the rear.
Thanks for all!
Ahhhhhh.... How many hour you laught for all errors (orror is better)
This evening I go to adjust the belt tension.
Maybe the rear wheels are blocking for a problem indipendent from the abs. Maybe the suspension lowered take in error the regulator of braking. This week end I'll try to lower the 2 "untie-head bolt" (??? "testa a snodo" ???) to decrease the braking at the rear.
Thanks for all!
Ahhhhhh.... How many hour you laught for all errors (orror is better)
- Fra
- Newbie Poster
- Posts: 6
- Joined: Wed Oct 02, 2002 11:17 pm
- Location: Italy
Fra,
If you've lowered the car and you have the bias valves at the back you may need to adjust them as it'll be applying more braking to the rear because it thinks there is more weight in there.
Don't worry about you english as it's a lot better than my Italian It probably better than my English anyway
Regards,
Stephen
If you've lowered the car and you have the bias valves at the back you may need to adjust them as it'll be applying more braking to the rear because it thinks there is more weight in there.
Don't worry about you english as it's a lot better than my Italian It probably better than my English anyway
Regards,
Stephen
- Quantum
- Senior Poster
- Posts: 427
- Joined: Thu Jan 01, 1970 1:00 am
- Location: Surrey
Another question: how the abs do to check the rear wheel? I don't find no one sensor or belt. Maybe Quantum tell about regulator of braking at the rear?[/quote]
the abs on the rst is only two channel which mean it only monitors and works two wheels, in this case its the fronts. there is no control on the back. i have never found this to be a problem as it requires a lot of effort to lock the back wheels.
the abs on the rst is only two channel which mean it only monitors and works two wheels, in this case its the fronts. there is no control on the back. i have never found this to be a problem as it requires a lot of effort to lock the back wheels.
davy
- davy
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- Location: northern scotland
This morning I adjusted the regulator of braking at the rear. Now the rear wheels not block.
For davy: I asked you how the system check the rear wheels because the local ford has print me the abs system for fiesta 89_96 and the title is: ABS on four wheels.
Maybe, for ford, the two belts are telepathics and feel the rear wheels...
Bye!
For davy: I asked you how the system check the rear wheels because the local ford has print me the abs system for fiesta 89_96 and the title is: ABS on four wheels.
Maybe, for ford, the two belts are telepathics and feel the rear wheels...
Bye!
- Fra
- Newbie Poster
- Posts: 6
- Joined: Wed Oct 02, 2002 11:17 pm
- Location: Italy
11 posts • Page 1 of 1
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