transmission clunk

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Oct 12, 2005 | 03:56 PM

lancekilgore

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transmission clunk

This weekend we had a horrific snow storm here in Colorado, The truck drove fine in four hi. But when I went to four lo to pull my daughter out of a ditch (it also worked fine) when she was out and I switched it back to 4 HI, nothing happen, then driving down the road about 50 feet there was a loud clunk felt like I lost the transmission. then she drove fine.
question is there a procedure like backing up so far after you switch from 4Lo or did I mess something up in there. I don't want to even try 4 lo again. any opinions ?
It's a 2000 F150 Supercab.
Just so you know I lost 4 mpg while in 4hi

Lance

Oct 12, 2005 | 04:26 PM

l-m tech

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From: duncan oklahoma

i always put the vehicle in neutral with my foot on the brake when you engage it. i do the same when i dis engage it,and back up 15 feet or so . but thats how i do it.

Oct 12, 2005 | 04:31 PM

lancekilgore

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Maybe I should try it when I get home to day (you way I-m tech) see what happens.
Thanks anybody else with reccomendations?

Oct 12, 2005 | 05:48 PM

code_red

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Had the same thing happen to me once when going out of 4 Low, and having the truck in gear. After that incident, i always take it out of gear now and into nuetral , then shift the 4 low , wait to feel disengagement(and Low Range light to go out) and then put the truck back into gear. Problem free since . I know with some of the old 4x4's that had the locking hubs on the axle it required you to back up after disengaging the 4x4.My owners manual says that you can shift into 4 high at a stop or up to 55 miles an hour and back to 2 H at any foward speed, but when shifting into and out of 4 Low the vehicle must be at a complete stop and the brake pedal must be depressed. Doesnt say anything about backing up.

Oct 12, 2005 | 07:37 PM

lancekilgore

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Itried it when I got home tonight, when it engagedthere was slight clunk (you could tell it was ingaged drove forward about 50 feet stope back into nuetral and switched back to 4 Hi slight clunk again then light went out. Should I feel a slight clunk is that normal. Iguess I could live with that.

Oct 13, 2005 | 05:25 PM

code_red

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I feel it when i do mine, but not a loud and ruff one like it did me when i tried to switch it from 4 low to 4 high while still in gear. Mine is a slight one. not really sure if thats normal or not though? I would guess it is.Anyone???