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Thread: PANTHER LEAN ISSUE TSB Crown Vic, Grand Marquis TSB 93-1-1

  1. #1
    Join Date
    Nov 2012
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    PANTHER LEAN ISSUE TSB Crown Vic, Grand Marquis TSB 93-1-1

    TSB Found on previous models LEAN ISSUE --

    Two of my four panthers have "the lean" and two don't. The two that lean ALSO SIT 1.5 to 2 inches taller in front and EACH ONLY HAS 30.000 miles. Drives me fricken Batty!

    Wild thing is... Of the two that sit high in front AND lean, one is a Marauder, and the other is a CVSPORT.

    I found NOS (rare) Heavy duty front springs with same stock tag codes as Marauder.... Installed them with new Heavy Duty Shocks...AND THE DAMN CAR STILL SAT 2 INCHES TOO HIGH. So I uninstalled them and had 1 coil could cut... And it sits almost exactly like the two stock panthers do.

    So I then installed new rear KYB struts, and A-2220 Heavy duty airbags (Limo etc).

    The new KYB shocks were installed a while back with new rear sway bar, so I just installed the new heavy duty airbags and they are BADASS. Could feel the difference in the driveway. The comparison is as striking and when you first installed New Metco Watts link and control arms....That much of an immediate noticeable difference. Car now sits 2 inches above rubber both front and back like my other two stock Panthers.. Looks amazing.

    Bad news is... Car still leans a little. It is not the bags, not the shocks, and not the springs. 1 owner car, never wrecked, still near showroom. Mechanic checked everything he could think of.

    SO I SEARCHED AROUND THE INTERNET AND FOUND THIS OLD TSB.. 93-1-1


    2003 300A Black, #4918 of 7838, 17,400 Miles
    Tune, KYB's, JLT, FlowMaster 42441, Res Delete, New BFG's, 8 coats of zymoil Titanium

    2003 300B Silver Birch, #21 of 419, 29,800 miles
    Tune, JLT, FlowMaster 42441 Res Delete, New Nitto 235/255 Bigcarsforever dead peddle & custom SRP peddles, 5 coats Zymoil Titanium, Addco front and rear sway bars, KYBs, 1/2 inch coil cut, Sparta Watts link and Control Arms, Carfixer alignment.

    2003 CV Sport Matador Red, 19,280 Miles, DD, Curless Full Service Royal flush, Marto Tune, 18 Chrome Wheels w 235/265 front/back Nitto tires, NEW OEM Sport Springs -1 coil & Monroe Severe Duty (front) shocks, Addco front and rear sway bars, KYB rear Shocks, Carfixer Alignment.

    2004 CV HPP Silver Birch, 93,000 miles. Son's DD, 18 Chrome Wheels w 235/265 front/back Nitto tires (thank you Lowndex!)

  2. #2
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  3. #3
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    2” above the rubber and looks amazing should not be used in the same sentence.


    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  4. #4
    Join Date
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    For some reason I thought this thread was going to be about air/fuel ratios. You know like "That Panthers running lean, man."

    It was an honor to have
    my ASS kicked by you!
    Rest In Peace!
    Paul T. Casey

  5. #5
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    In reading the full TSB, they actually had kits made withseven 1/2 "spacer" bolts for the low side. It was a great read!

    Part of the TSB discussed how to "settle" a car for measurement tomake sure the car qualifies for the fix.

    Not making this up... It has the dealer load trunk until rear height adjusts,unload trunk, and then shake car up and down in rear, shake up and down infront, and rock car side to side, right above front/rear door pillars. Then,After the procedure to measure (on flat ground) to lower lip of wheel well.

    So I've already shared the above suspension and bag replacement... (Sadly) Notcuring my "lean."

    A week later I was in Downtown Sac, where the roads have a heavy crown intogutter (we are a 3 river city... lots of rain/water/flooding), on one waystreet parked with my passenger side 12-14 inches lower than driver's side(hard to open driver's door). Parked for an hour, came out and remembered theTSB. Just for fun, I rocked car side to side as described in the TSB, using thecrowned road to gain more leverage/movement.

    People were walking by, casting odd looks my way, so I stopped. Then I thought,heck with them, the conditions are too perfect, so I went back at it like I wastrying to rock and tip the car over (harder since all new suspension parts wereinstalled front and rear). And I seriously rocked the car for a few minutes.

    Got in, drove home, made some tight hard turns, hit freeway for 5 miles, and NOJOKE. MY CAR LEAN IS NOW NON EXISTENT. It has been three weeks now -- and I amsure I will get flamed...but I am going to do this every time I notice thelean.

    Someone else please try it! I understand that this shouldn't work... BUT underthat same premise our cars shouldn't lean in the first place!

    Post up if it helps!




    2003 300A Black, #4918 of 7838, 17,400 Miles
    Tune, KYB's, JLT, FlowMaster 42441, Res Delete, New BFG's, 8 coats of zymoil Titanium

    2003 300B Silver Birch, #21 of 419, 29,800 miles
    Tune, JLT, FlowMaster 42441 Res Delete, New Nitto 235/255 Bigcarsforever dead peddle & custom SRP peddles, 5 coats Zymoil Titanium, Addco front and rear sway bars, KYBs, 1/2 inch coil cut, Sparta Watts link and Control Arms, Carfixer alignment.

    2003 CV Sport Matador Red, 19,280 Miles, DD, Curless Full Service Royal flush, Marto Tune, 18 Chrome Wheels w 235/265 front/back Nitto tires, NEW OEM Sport Springs -1 coil & Monroe Severe Duty (front) shocks, Addco front and rear sway bars, KYB rear Shocks, Carfixer Alignment.

    2004 CV HPP Silver Birch, 93,000 miles. Son's DD, 18 Chrome Wheels w 235/265 front/back Nitto tires (thank you Lowndex!)

  6. #6
    Join Date
    Feb 2017
    Location
    New Orleans, LA
    Posts
    262
    I noticed about 3 months ago that my marauder started leaning to the driver side. Not sure why as I hadn't had time to investigate it but it has not corrected itself so I assumed it was bad / failing bag on the driver rear. However, the pump does not run any more than it did when new so that threw me off a bit as well. I will check out the tsb's when I get some free time and post back with my findings.

  7. #7
    Join Date
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    Quote Originally Posted by gdmjoe View Post
    Thank you so much!


    2003 300A Black, #4918 of 7838, 17,400 Miles
    Tune, KYB's, JLT, FlowMaster 42441, Res Delete, New BFG's, 8 coats of zymoil Titanium

    2003 300B Silver Birch, #21 of 419, 29,800 miles
    Tune, JLT, FlowMaster 42441 Res Delete, New Nitto 235/255 Bigcarsforever dead peddle & custom SRP peddles, 5 coats Zymoil Titanium, Addco front and rear sway bars, KYBs, 1/2 inch coil cut, Sparta Watts link and Control Arms, Carfixer alignment.

    2003 CV Sport Matador Red, 19,280 Miles, DD, Curless Full Service Royal flush, Marto Tune, 18 Chrome Wheels w 235/265 front/back Nitto tires, NEW OEM Sport Springs -1 coil & Monroe Severe Duty (front) shocks, Addco front and rear sway bars, KYB rear Shocks, Carfixer Alignment.

    2004 CV HPP Silver Birch, 93,000 miles. Son's DD, 18 Chrome Wheels w 235/265 front/back Nitto tires (thank you Lowndex!)

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