The Truth About Cars » ABS http://www.thetruthaboutcars.com The Truth About Cars is dedicated to providing candid, unbiased automobile reviews and the latest in auto industry news. Wed, 16 Apr 2014 19:53:57 +0000 en-US hourly 1 http://wordpress.org/?v=3.8.1 The Truth About Cars is dedicated to providing candid, unbiased automobile reviews and the latest in auto industry news. The Truth About Cars no The Truth About Cars editors@ttac.com editors@ttac.com (The Truth About Cars) 2006-2009 The Truth About Cars The Truth About Cars is dedicated to providing candid, unbiased automobile reviews and the latest in auto industry news. The Truth About Cars » ABS http://www.thetruthaboutcars.com/wp-content/themes/ttac-theme/images/logo.gif http://www.thetruthaboutcars.com Piston Slap: An Inappropriate Grab? http://www.thetruthaboutcars.com/2013/01/piston-slap-an-inappropriate-grab/ http://www.thetruthaboutcars.com/2013/01/piston-slap-an-inappropriate-grab/#comments Mon, 14 Jan 2013 12:32:10 +0000 http://www.thetruthaboutcars.com/?p=473537 TTAC Commentator flipper35 writes:

Hi Sajeev,

We have a 2000 Dodge Durango 2WD with rear abs (hub assembly is different than if the front had abs if it matters) and 165k miles.  It has been a pretty good truck with few issues but we do have an annoying one that came up.  The truck isn’t a commuter for me, just for the occasional errand that my wife needs to run or when the whole family goes somewhere so it gets driven a couple times a week just a few miles on the highway into town and back.  The issue is the brakes. 

They work fine but when stopping at highway speeds with constant pressure on the pedal the brakes will suddenly grab more and sometimes it is one side that will grab slightly quicker than the other then the braking is equal again.  These pads have about 8k mile on them and are a ceramic composite pad and were bedded properly when installed but the rotors had some slight grooving and the old one had little life left.  I went with this style because the last set of ceramic composite (NAPA brand) were great with good feel and exceptional performance when hustling on the back roads.  The new ones are from a parts warehouse that supplies parts stores all over the area (dad works there so I got a great discount.  During heavy braking the issue doesn’t show up but it is a little disconcerting to have the truck pull to one side briefly during normal stops.  The brakes will exhibit some fade now when hustling the curvy roads where the old ones did not.  Re-bed or replace pads and rotors?  Rust from sitting a while after the last snow storm and salty roads?

Sajeev answers:

Getting old sucks.  While I am not sure of the exact problem, I betcha it’s one of these:

  • Collapsed brake line (inspect all rubber components)
  • Rusty brake caliper bores (reman replacements are cheap)
  • Crud in the brake caliper’s fluid reservoir (see above)
  • Very, very bad brake fluid (flush the system entirely)
  • Extremely loose ball joint on one side (not likely)

It sounds like you have the brake pad and rotor situation under control, and you drive it enough to make rust a non-starter.  I mean non-stopper.

I think you have an old truck that needs more than a basic brake job. Time to check the calipers, the brake lines and the suspension. Hopefully all you need are a new pair of front calipers: they are about $25 each from Rock Auto. Score.

 

Send your queries to sajeev@thetruthaboutcars.com. Spare no details and ask for a speedy resolution if you’re in a hurry.

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Piston Slap: Need a “Hans and Franz” ABS Workout? http://www.thetruthaboutcars.com/2012/07/piston-slap-m3-needs-more-hans-and-franz/ http://www.thetruthaboutcars.com/2012/07/piston-slap-m3-needs-more-hans-and-franz/#comments Mon, 30 Jul 2012 11:25:19 +0000 http://www.thetruthaboutcars.com/?p=454647

 

Craig writes:

Sajeev,

Some time ago I purchased a 1995 (E36) BMW M3 as a project car. Mostly I have limited myself to bringing the maintenance up to date. I have a more than averagely equipped workshop and can find my way around a car pretty well (I have even built my own Brunton SuperStalker) One problem that has eluded me from day 1 is an intermittent ABS light.

Should I just ditch the ABS forever or is there a way to trouble shoot these things without Hans and Franz at the stealership taking me for a ride?

Sajeev answers:

I tend to like ABS, especially for a car that’s so race course worthy.  The E36 M3 is just a fantastic car in so many ways.  That said, I was disappointed when I googled Brunton SuperStalker and realized it wasn’t a murdered out full-size van with a suped up turbo diesel motor, air-ride suspension and big ass wheels.

A non-van referred to as a SuperStalker?  That’s almost criminal!

Right.  So, about the diagnosis, you have two options.  The first is spending a lot of time on the BMW forums, learning how to diagnose this vintage system and possibly finding a common problem with a somewhat easy to fix solution. Not really your cup of tea?  Then find an independent mechanic that specializes in BMWs and get 1-2 hours of their diagnosis instead.  It will be worth it.

The dealership isn’t the best move here, usually. Cars that are “E36-old” need a shop that is tailor-made to their unique needs.  Many (insert make here) dealerships know a good vintage (insert the same make here) shop and will recommend them to anyone. Yes, I’ve seen it happen! Most importantly, Hans and Franz will always encourage you to work your ABS.

“Hear me now, and believe me later: WORK YOUR E36 ABS!  ARE YOU A GIRLY MAN?” 

 

Send your queries to sajeev@thetruthaboutcars.com. Spare no details and ask for a speedy resolution if you’re in a hurry.

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