i picked up an 86 grand marquis from a member on the forum a few weeks ago. its been running pretty well but lately after driving for more than 5 minutes a burning smell and smoke starts coming from the driver side rear wheel. i think its from the brakes, i dont know anything about drum brakes but the brake pedal pulsates when i push on it and is really mushy. when i put new wheels on for a test fit i put it on this side. i pushed the brake drum as far back and i could is it possible smoke is coming from the brakes? anyone have any idea whats going on?
 |
-
-
Id suspect a wheel cylinder is leaking fluid onto a hot warped drum.Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
sigpic
85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo -
Either a wheel cylinder or perhaps an axle seal. Pull the drum off and see what you can see. Does it smell like anything in particular?
2001 Ford Crown Victoria P71 - "The Fire Engine"
1985 Lincoln Town Car Signature Series
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8Comment
-
it reminds of the smell my cadillac had when the head gasket blew. thankfully its coming from the wheel not the engine though. ill take some pictures of it tomorrow when i have some light hopefully you guys can help me diagnose this problemComment
-
Pulsating pedal = there's at least one warped rotor or out of round drum on the car. If the car's background is unknown, I'd start by having the drums turned as soon as you fix the fluid leak.
Mushy pedal = air in brake lines (typically). May be time to bleed the brakes.2012 Mazda5 Touring | Finally working on the LTD again!
Comment
-
You can isolate it front to back by using the parking brake. If the car makes that same vibration with the parking brake, its the drums. If not, its the front rotors. I'd strongly suggest rebuilding both rear brakes. If one is bad, the other is not far behind. Check the front brake parts and hoses while you're at it, they may not be much better.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
i dont understand what you mean by isolating it.. when should i put the parking brake on and test this? also i should have mentioned this before this problem started after i put the parking brake on for the first time. even though i pulled the handle and it says its fully disengaged, it could just be a coincidence, maybe its stickingComment
-
Translation: if you apply the parking brake gently while driving, it will be engaging only the rear brakes. If you get a shudder, one or both drums are out of round and they should be turned. If the braking is smooth, there is runout in the front rotors and those need to be turned.2012 Mazda5 Touring | Finally working on the LTD again!
Comment
-
If you just started using the parking brake and it hadn't been used for some time before that, it's entirely possible that the cable that runs to the rear brakes was rusty enough that when you went to release it, it didn't actually release. I'll bet your rear brakes are somewhat applied all the time right now.
2001 Ford Crown Victoria P71 - "The Fire Engine"
1985 Lincoln Town Car Signature Series
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8Comment
-
Give the cable that runs under the driver's side floor pans a tug. Thats what I have to do to fully release my e brake.**2012 Ford Mustang Boss 302: 5.0/ 6 spd/ 3.73s, 20K Cruiser
**2006 MGM,"Ultimate": 4.6/ 2.73/ Dark Tint, Magnaflows, 19s, 115K Daily Driver
**2012 Harley Davidson Wide Glide (FXDWG):103/ Cobra Speedsters/ Cosmetics, 9K Poseur HD Rider
**1976 Ford F-150 4WD: 360, 4 spd, 3.50s, factory A/C, 4" lift, Bilsteins, US Indy Mags, 35s Truck DutiesComment
-
lifted the car up and put it on jack stands.. all the wheels spun freely except the culprit wheel which lead me to believe the e brake was on. i found a cable in there that wasnt connected and i dont know where to connect it. the burning smell was still lingering from last night.
Comment
-
that cable goes on the bottom thing that is sitting on the adjuster on the bottom, the one that already has a spring on it inthe first pic.
Looks like the adjusters are siezed, and the axle seals are leaking. Did the drum come off easily? Might just be the parking brake dragging that caused the smoke. The parking brake cables are probably stuck and made the brakes drag.Builder/Owner of Badass Panther Wagons
Busy maintaining a fleet of FordsComment
-
the drum came off very easily no problem at all. im going to go try to attach that cableComment
-
there isn't any point reattaching the cable. It's for the self adjusting brakes, and the adjusters are completely seized. You need to take the brakes apart and clean the hardware up or replace it.Builder/Owner of Badass Panther Wagons
Busy maintaining a fleet of FordsComment
-
thanks for all the help, but i have another question, how can you tell the axle seal is leaking?Comment
Comment