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Mark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputation

Mark Kovalsky Mark Kovalsky is online now

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Showing Visitor Messages 1 to 10 of 491
  1. zephyr74
    Today 02:06 PM - permalink
    WOW, thanks for the quick response. I tried shifting to 2nd but the temps still were high. I can try seeing what 1st gear will do next time.

    A restricted cooler circuit, can you explain that? I did put on a 6.0 cooler not too long ago with no change in temp, as it still gets hot. I think the transmission shop tested for leaking bypass valve, but I will confirm. Is that doing the 15 second test in a bucket and measuring at least a qt? And what do you mean by radiator cooler in the cooling circuit? Sorry I'm not familiar with this.

    And, is it worth trying to replace the radiator with a new one? I just flushed it a 500 miles ago and the trans is still having overheating issues.
  2. zephyr74
    Today 01:25 PM - permalink
    I NEED your advice. Long story short. Im original owner, 2003 F250 CCSB 7.3ltr auto. Ford replaced trans at 30K and 80K under warranty for overheating and puking fluid and throwing a code. Then at last year at 120K it did it again. I had a shop rebuild trans. Next trip I took, towing atv trailer on steep paved winding road it got hot into the yellow. Shop couldn't find anything wrong. I then did 6.0 cooler, had ford flush trans and it still gets into yellow on steep winding roads (less than 30 mph) even without towing anything! I have scan gauge and hottest it got was 247 briefly. but it goes from 220-245 pretty quick and back down depending on my throttle. This was with OAT 75-90 deg. ANY thoughts? I left a lot of little details out due to size of message allowed.

  3. Dion LeBlanc
    07-28-2015 12:27 AM - permalink
    Dion LeBlanc
    Will do. Sir and thank you
  4. Dion LeBlanc
    07-27-2015 03:03 PM - permalink
    Dion LeBlanc
    Mr. Mark, i have a 2006 F-250 SD 4x4 supercab. The tow-haul blinks, it won't go into 4 and 5 unless i get it to around 55 put it in neutral turn the key off and back on then quickly put it in D then the RPMs go to 1.5 to 2.0. I followed your advice on one of these post which i think your great.I changed the TFT sensor and i thought it helped but was wrong. The fluid in the transmission was fine and there were NO metal shavings in bottom of the pan it was clean fluid. i swap the filter unplugged the battery touched the (+) and (-) together to drain i still have to cut the key off and back on to get it into the higher gears and then when i stop it crawls up to speed from a dead stop at the light like it's still in the high gear. When i park and then try to drive after i come back out on occassion it will wind up the rpms then slam into the lower gears. I would go to a Mechanic but all to often i hear their favorite phrase to say "It will cost more to fix it than it's worth".HELP YODA!!!
  5. jpgale
    07-21-2015 11:57 PM - permalink
    Thanks that was the way I was leaning, such a stupid rookie mistake to make.
  6. jpgale
    07-21-2015 12:55 PM - permalink

    I did a drain and refill of my transmission fluid over the weekend, I noticed however that when I removed the old internal filter I forgot to remove the o ring from inside the transmission where the filter neck is located. The new filter locked in well but now I have 2 rings up there. My question is should I drain the fluid again and remove the extra o ring or will it be ok to leave until the next time I replace the transmission filter.

  7. bhesse
    07-21-2015 10:19 AM - permalink
    early shifting meaning it will shift into 3rd at about 35 unless I am accelerating hard like on the freeway I always leave OD off unless on freeway. happy to give you any and all info but I am now at a loss as to a direction to go with this..... thank you
  8. bhesse
    07-20-2015 05:14 PM - permalink
    Shifting issues 93 f150 5.0 4EOD
    OK, I researched and read about all I can find on this and F150 site so any help would be appreciated
    1993 F150 5.0 4EOD 4x4
    I have the usual early shift problems ( OD OFF or OD ON) no diff
    NO codes-clear
    Replaced and tuned perfectly, plugs, wires, cap, PCV with MC parts as well as all sensors-TB,coolant, fuel vacuum, rear end speed sensor (VSS) and now new PCM
    New rebuilt Transmission works as new with all sensors or connections cleaned or replaced, all grounds cleaned.
    When driving with CC on truck shifts like it was new, no issues, downshifts when needed ect.... when in manual (no CC) will not downshift under full load unless I pound pedal to the floor, or stab the breaks, when I put on CC and all is fine..... run out of ideas what am I missing
    HELP please-thanks
    This is a great site guys!
  9. mon_madarang
    07-02-2015 06:02 PM - permalink
    sir will dexron III cause damage in my transmission? what could cause bad seal in my reverse clutch? can a good mechanic replace that bad seal? thank you very much sir. i really appreciate it.
  10. mon_madarang
    07-01-2015 09:16 PM - permalink
    sir, i would like to ask whats going to happen if you put dextron III instead of mercon v in ford explorer sport truck transmission? and what could be the problem if the reverse gear wont respond immediately? mine wont engage immediately, it will take 8-10 secs before it goes on reverse and sometimes i even have to turn the engine off and on before the reverse engages. sometimes also when running for a period of time the o/d off flashes in the dash. butif i turn off the engine and restart it goes out. what do you think could the problem be? i had the atf changed but they put dextron III. please help! thank you..

About Me

  • About Mark Kovalsky
    Former Ford automatic transmission engineer.
    SE Florida
    Flying, Antique cars and fire trucks.
    2 Letter State/Province (use "--" for outside USA/
    Econline or E-Series
    Current Mileage
    125,000 - 149,999
    Miles per year
    0 - 999
    2002 E350
    Engine type and displacement
    60 foot time
    1/8 Mile ET
    1/8 Mile MPH
    1/4 Mile ET
    1/4 Mile MPH
  • Signature
    Former Ford Automatic Transmission Engineer 1988 - 2007

    “The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson


Total Posts
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General Information
  • Last Activity: Today 02:22 PM
  • Join Date: 08-13-1999
  • Referrals: 1


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