It's actually not bad at all, you git a lot of room and don't have to take off inake or anything crazy like a Bimmer
What have you done to your 100 Series this week? (36 Viewers)
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I never had to pull an intake for a VC gasket on a BMW, the variable valve lift motors did have to come out on some of the 2008ish and newer cars but it wasn't too bad. I would def rather do 2 VC gaskets on a 1997 6 cyl BMW than the drivers side of the this 100 series V8 though.It's actually not bad at all, you git a lot of room and don't have to take off inake or anything crazy like a Bimmer
Welp. Won the brake booster failure lottery so that's what got done.
Cheers for being cheerful about it. I tell all my friends that a 100% of 100 series will experience this stupid failure around 200k miles - most of them don't appreciate the news!
Any symptoms leading up to it? ive got 240k on mine and its never been replaced. I rather do it preventatively vs having a failure on the road.
WHY will 100% of 100 series experience brake booster failure around 200,000 miles? What causes this to happen?
Best educated guess is overfilling break fluid res running down the sides onto the electric bits
These are early generation electric booster systems. An electric motor runs a pump to pressurize the brake fluid in the accumulator. It has multiple advantages over the simpler vacuum operated brake booster that older Cruisers had.
This makes brakes completely independent of engine and you don't lose your brakes if the engine stalls out!!
Unfortunately, the electric motor has a limited life and can wear out with 20 years of service and abt 200k miles.
So if your truck is nearing that mileage, you're on borrowed time. Replace your booster before you buy those chintzy wheels or spend money on other masculine jewelry for your truck.
This makes brakes completely independent of engine and you don't lose your brakes if the engine stalls out!!
Unfortunately, the electric motor has a limited life and can wear out with 20 years of service and abt 200k miles.
So if your truck is nearing that mileage, you're on borrowed time. Replace your booster before you buy those chintzy wheels or spend money on other masculine jewelry for your truck.
I'll cross the bridge when I come to it, but as a whole, I think this guy has the issue pegged pretty good.
I must be winning the lottery at 290k. Rebuilding. Or replacing the motor is on my to do list as a precaution this winter.
That is indeed one of the common issues. But the commuter brushes are also a wear item and cause the failure.
Eyedaho
SILVER Star
The brake booster motor, or your engine?
No symptoms, but I got the notification* well before actual brake failure occurred. To be honest, I got two warnings. I just didn't believe the first one because I got it second hand from a mechanic that was working on the AHC. Now in my defense, the battery got run down to zero so I thought it was the usual low battery Christmas tree. Once I had the battery on the charger all the lights went away.
Halfway home for lunch and I got the notification again and made it back to the shop without any failure.
Definitely something for people in the mileage band to prepare for, @ClassyJalopy , agreed.
* If you can call a half dozen lights and incessant SCREEEEEEEEEEEEEEE a notification.
This is on my list. Where did you buy?
Unfortunately my answer to that won't be useful -- it was a warranty repair. I bought the ultra golden extended platinum diamond encrusted warranty when I bought the truck, since I already knew the AHC needed doing.
I can only imagine your smug face
Man after my own heart, i recently took advantage of Firestone's lifetime wheel alignment warranty.....for the 3rd time, I'm thinking about a little tire decal to put on the fender to commemorate each one received under warranty
I can only imagine your smug face
I am literally the only guy asking their service advisor, "Are you sure there's nothing else wrong with it? Nothing that needs replacing?"
Look for oil seepage from the valve cover, or grease seepage from the CV axles - both pretty common issues.
