Hi, Just need any owner to check how many pedal pumps does it take for the abs pump to start working and how many for the abs light to turn on. I think m my abs accumulator might not be in the best of shapes. In my case after I put the key in the on position and the abs pump has stopped it takes about 6 pumps for the pump to start working again and 9-10 for the light to turn on. I'm planning a trip to the nordschleife and I'd like the car to be as good as possible. Thanks!
There are no leaks, confirmed. Saab also used the same system as the f355. I've been reading saab forums and apparently its quite common that these accumulators lose their nitrogen pressure with time. Mine is a 95 so it's been a while... Checked with another ferrari owner and its more or less like mine. Anyway, I bought a new accumulator which are really really hard to find. I bought it in a jaguar dealer, expensive for just a simple accumulator but pretty sure cheaper than in the Ferrari dealer. Will do the same tests and check if there's a difference.
It's been awhile since I've looked into this but if I remember correctly, besides Saab and Jaguar, I believe Ford and/or Lincoln also used the same unit. Not sure if that helps but should definitely be cheaper.
Alfa used the same on the Milano/75. I have a new in box accumulator for my Milano 3.0.....need to install it. You might find it listed under Alfa too, but it may be just as expensive so.
GM used it in several cars but unfortunately none of them were sold in my country ever so there are no references. The accumulator is built by ate but I had no luck sourcing it from part stores. Mapco also had a replacement for this part but same issue, I could only buy it from the USA and adding the price of the part, shipping costs and customs the price ended up being similar to what I paid for the jaguar part. Haven't checked it but I'd say you're right, alfa part will be as expensive or even more...
Can someone explain what this thread is about? Sorry, I'm confused. Pedal pumps for the ABS pump to turn on? I don't understand. I get in my car, turn on the ignition, the ABS light is ON. I start the car and after a few moments the ABS light goes OFF. No pumping of the brakes required that I recall. Occasionally, I back it out of the garage and apply the brakes once before it goes out. I can not reconcile this with the OP's opening statement"
Yes what you say is normal operation. The pump pressurizes the system, lights switch off and off you go. The accumulator is there to accumulate reservoir pressure in the system. If it's in bad condition, every few pumps of the brake pedal the abs light will set off because there won't be enough pressure in the system due to the accumulator discharging itself too quickly. The pump will come in and pressurise the system again. The pedal pumping I was talking about was to check if the accumulator is in good condition or not, not that you should do it every time you start the car. Let's say you pump the pedal 6 times and the abs/warning light comes on... then your accumulator is bad. I've had my abs warning light come on during driving on mountain roads with lots of braking so recently I checked it like I said in the op and those were the results I had. I know for sure that if the light comes on with 5-6 pumps of the brake pedal the accumulator is shot but in mine it takes 10-11 pumps. I don't know if that's how it should be or it should take 15 pumps like I've read in some saab forums which use the same brake system. If everyone who's does that test has the same results as I did then I know that is normal. Anyways, as I already bought the new accumulator Ill test it and post the results so we all know how it's supposed to be with a brand new part.
Bump the thread with the results. Replaced the abs ate accumulator and... a world of difference. Old accumulator: -Once the key in the ON position the abs pump would take ages to pressurize the system. Abs light would be on for like 20 seconds. - with 10-11 continuous brake pedal pumps the abs warning light would light up. New accumulator: - once the key is in the ON position the system pressurizes almost immediately. Abs light switch off in 5 seconds o less. - it takes 20 continuous brake pedal pumps for the abs warning light to light up. Definitely my accumulator needed replacement. Hope this gives some insight and helps someone in the future.
Certain years had a vacuum brake booster where the pumping test does not apply. Image Unavailable, Please Login
