98' F150 TRNSMISSION PROBLEM
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Joined: Dec 2001
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From: Surrey Candada
98' F150 TRNSMISSION PROBLEM
Hi I got a 98 F150 auto XLT,
WHEN I AM JUST COASTING APP. 70KM/H THE RPMS DROP TO 1200RPM, WHEN I NEED TO ACCELERATE A LITTLE, DEPRESSING THE PEDAL RESULTS IN THE RPMS STAYING THE SAME, ENGINE CHOCKING AND THEN THE BIG BANGS FROM THE TRANY, I ALSO HAD A FRIEND MECH TEST DRIVE IT AND HE SAID THAT THE TRANY IS SLIPPING BUT NOT ALWAYS. I DID ALL THE FLUID CHANGES ETC. NO LUCK AT ALL. THE TRUCK OFTEN WILL MAKE A LOT OF NOISE BUT PRODUCE VERY LITTLE OF HEALTHY ACCELERATION AND NOW MY FUEL ECONOMY GOT ALMOST CUT BY HALF.
SO IT LOOKS LIKE I WILL HAVE TO TAKE A TRIP TO THE DEALER. DID ANY ONE EXPERIENCE THIS PROBLEM ?? WHAT COULD BE THE SOLUTION?? I HAVE HEARD THAT THERE COULD BE SOME TENSION BELTS RELATIVELY EASY TO ADJUST WHICH AFFECT THE OPERATION OF THE TORQUE CONV?
WHEN I AM JUST COASTING APP. 70KM/H THE RPMS DROP TO 1200RPM, WHEN I NEED TO ACCELERATE A LITTLE, DEPRESSING THE PEDAL RESULTS IN THE RPMS STAYING THE SAME, ENGINE CHOCKING AND THEN THE BIG BANGS FROM THE TRANY, I ALSO HAD A FRIEND MECH TEST DRIVE IT AND HE SAID THAT THE TRANY IS SLIPPING BUT NOT ALWAYS. I DID ALL THE FLUID CHANGES ETC. NO LUCK AT ALL. THE TRUCK OFTEN WILL MAKE A LOT OF NOISE BUT PRODUCE VERY LITTLE OF HEALTHY ACCELERATION AND NOW MY FUEL ECONOMY GOT ALMOST CUT BY HALF.
SO IT LOOKS LIKE I WILL HAVE TO TAKE A TRIP TO THE DEALER. DID ANY ONE EXPERIENCE THIS PROBLEM ?? WHAT COULD BE THE SOLUTION?? I HAVE HEARD THAT THERE COULD BE SOME TENSION BELTS RELATIVELY EASY TO ADJUST WHICH AFFECT THE OPERATION OF THE TORQUE CONV?
Thread Starter
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New User
Joined: Dec 2001
Posts: 4
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From: Surrey Candada
98' F150 TRNSMISSION PROBLEM
Answer: Went to the trany specialists and they said that it is the torque converter and or the solenoid for it (second opinion). So off they went rebuilding my trany, one week later as it was christmas I got the track back. But when I was picking it up they told me " you know what it was not the trany it must be coming from the engine - like the cylinder miss " great ! Thanks for telling me $1600 CAD later (thank you warranty), so the FORD trany in F150 is good. Proceeded to change all sprk-plugs and wires, and surlly the problem went away.
What was very confusing it was that the engine did not ruttle, bang or did all those obvious things when you have c-miss, except the fwd-aft jerking at low rpms while at higher speeds.
What was very confusing it was that the engine did not ruttle, bang or did all those obvious things when you have c-miss, except the fwd-aft jerking at low rpms while at higher speeds.
