04-23-2014, 03:03 PM
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#1
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Junior Member
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Join Date: Mar 2014
Location: Duluth
Posts: 6
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Junior Member
Join Date: Mar 2014
Location: Duluth
Posts: 6
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Brake Booster?
Hi guys. So i've been having issues with the brakes on my 99 limited 4runner and I think I have determined that the brake booster is bad, however i'm not fully convinced yet. I have the rock hard pedal issue, which I though was related to the cold weather up here in Duluth, however after i replaced the check valve/grommet I'm still getting the same issue. It isn't as prevalent when braking on flat ground, however as I'm braking down some of the steep hills around the city the pedal will progressively get harder to the point where it's rock solid and the brakes are not fully functioning.
Also, i can slightly hear air escaping right when I start it and depress the brake pedal. This seems to go away as it warms up, however. The strange thing is that when i pump the brake pedal with the key off it builds pressure and gets hard and then when i start it it slightly depresses...isn't this a sign of a properly working booster? I'm just trying to do some research before I throw money at it. Also, is the 99 booster and different from previous years? The local salvage yard has a few older booster in stock.
Thanks for the input.
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04-24-2014, 11:33 AM
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#2
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Senior Member
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Join Date: Aug 2011
Location: Las Vegas, NV
Posts: 1,087
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Join Date: Aug 2011
Location: Las Vegas, NV
Posts: 1,087
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Mine went bad and sounds very similar. It would even work intermittently until it was all gone. It is a very simple procedure, however please buy OME or you will need to replace it again in a couple years, which I had to do. I also, have a 99 and changed it in the parking lot of an ACE hardware 200 miles from a actual town. (Hence having to buy a Napa type knock off)
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1999 4Runner SR5, with some stuff...
OverlandNV
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04-24-2014, 01:59 PM
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#3
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Join Date: Jul 2011
Location: Idaho Springs, Co
Posts: 660
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Join Date: Jul 2011
Location: Idaho Springs, Co
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Oh man Duluth... I actually got trapped there for 2 months once, hate that place, even with most of my family still living there. But if you can make a living and don't mind the temps, power to you!
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04-24-2014, 02:03 PM
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#4
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Junior Member
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Join Date: Mar 2014
Location: Duluth
Posts: 6
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Join Date: Mar 2014
Location: Duluth
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Quote:
Originally Posted by thor999
Oh man Duluth... I actually got trapped there for 2 months once, hate that place, even with most of my family still living there. But if you can make a living and don't mind the temps, power to you!
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Ha! You must have been trapped in the winter. The summers are gorgeous and as long as you live an active lifestyle it's not all that bad! I'd much rather be in CO though....
Quote:
Originally Posted by ajonesnv
Mine went bad and sounds very similar. It would even work intermittently until it was all gone. It is a very simple procedure, however please buy OME or you will need to replace it again in a couple years, which I had to do. I also, have a 99 and changed it in the parking lot of an ACE hardware 200 miles from a actual town. (Hence having to buy a Napa type knock off)
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Good to know it's an easy procedure. Do you know if any 3rd gen booster is compatible with a 99? I'll probably go the salvage yard route due to the price of a new OEM one
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1999 4runner Limited e-locker-132,000 miles
1968 VW Westy
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04-24-2014, 02:10 PM
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#5
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Join Date: May 2011
Location: OBX, NC and Obamaville
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96-2000 are the years you want to look for.
Car-Part.com--Used Auto Parts Market for a yard close by.
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04-24-2014, 02:30 PM
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#6
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Junior Member
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Join Date: Mar 2014
Location: Duluth
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Quote:
Originally Posted by LittleCaesar
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Sweet! Thanks for the quick reply
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1999 4runner Limited e-locker-132,000 miles
1968 VW Westy
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05-08-2014, 05:02 PM
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#7
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Join Date: Aug 2009
Location: Craig, CO
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Real Name: Jerry Kraus
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Join Date: Aug 2009
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I have a 1999 with 231,000 and I have the same problem. I took it to the dealership and they confirmed it. In the past I have had a 1997 and a 1998 4Runner and the brake boosters all appear to be the same, if that helps.
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2002 T4R Limited 4x4 w/factory locker, factory supercharger, sunroof, deck plate mod, Tundra brake upgrade, BFG TA/KOs on 17" TRD rims, automatic transmission, 3" lift from Toytec with "Old Man Emu" heavy duty shocks & springs, 288,000 miles on it, I live outside Steamboat Springs, Colorado.
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05-08-2014, 07:13 PM
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#8
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Junior Member
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Join Date: Mar 2014
Location: Duluth
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Quote:
Originally Posted by SgtAbn
I have a 1999 with 231,000 and I have the same problem. I took it to the dealership and they confirmed it. In the past I have had a 1997 and a 1998 4Runner and the brake boosters all appear to be the same, if that helps.
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Good to know. I just picked one up from the junkyard today, so hopefully it'll solve the issue!
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1999 4runner Limited e-locker-132,000 miles
1968 VW Westy
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07-18-2014, 03:09 AM
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#9
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Join Date: Aug 2009
Location: Craig, CO
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Real Name: Jerry Kraus
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Member
Join Date: Aug 2009
Location: Craig, CO
Posts: 108
Real Name: Jerry Kraus
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Did it solve your issue?
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2002 T4R Limited 4x4 w/factory locker, factory supercharger, sunroof, deck plate mod, Tundra brake upgrade, BFG TA/KOs on 17" TRD rims, automatic transmission, 3" lift from Toytec with "Old Man Emu" heavy duty shocks & springs, 288,000 miles on it, I live outside Steamboat Springs, Colorado.
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10-16-2014, 09:12 PM
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#10
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Join Date: Jan 2010
Location: Salt Lake City, UT
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Quote:
Originally Posted by SgtAbn
Did it solve your issue?
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Would also like to know if it solved the issue. Facing the same problem, unfortunately.
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1999 4runner 4x4 Limited|Desert Dune|170,000 Miles|B&M SuperCooler|OME 881/906|265/75/16 Treadwright Guard Dogs|Deckplate Mod|All Pro 1.25" Wheel Spacers
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10-16-2014, 09:59 PM
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#11
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Join Date: Sep 2014
Location: Mesa Arizona
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Real Name: Neal
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Join Date: Sep 2014
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Real Name: Neal
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Yep bad booster. Pretty common issue. I just fixed it on my runner. Brakes got rock hard the more you pressured on them and would not stop the truck very well. Dead give away is hold the brakes down and turn off the truck the pedal will go up some.
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