farm truck problems
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Freshman User
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farm truck problems
first post and first problem. woohoo.
i got a 1988 F250 super cab, 5.8, 2wd, auto.
ive had a hard time getting information on these 2wd models so here i am.
now the problem I'm having... on occasion she slips like no other, throw her in park then back into drive and she'll be good for a bit. also from a dead stop she shakes then grinds to find 2nd.
i checked the fluid, it definitely needs to be replaced but should i bother if my symptoms are asking for a new transmission?
i got a 1988 F250 super cab, 5.8, 2wd, auto.
ive had a hard time getting information on these 2wd models so here i am.
now the problem I'm having... on occasion she slips like no other, throw her in park then back into drive and she'll be good for a bit. also from a dead stop she shakes then grinds to find 2nd.
i checked the fluid, it definitely needs to be replaced but should i bother if my symptoms are asking for a new transmission?
Senior User
Joined: Jun 2014
Posts: 466
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From: NE Ohio
Friends of mine had slipping and grinding transmissions, they both almost entirely fixed their issues by replacing what seemed to be 100,000 mile transmission fluid and filter.
Just a suggestion. Not always the answer.
Just a suggestion. Not always the answer.
Posting Guru
Joined: Jul 2011
Posts: 1,219
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From: Elk City, OK
You likely need to rebuild it but a fluid change would do a lot. All the symptoms you describe tell me it's on it's way out. We once had a truck with identical symptoms except it would grind in 3rd. Does the fluid look burnt? Metal flakes? Thin? What color?
Senior User
Joined: Jun 2014
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From: NE Ohio
Yeah, do a fluid/filter change. New tranny pan gasket too. Nasty color is normal if it hasn't been done for years, and no metal flakes is a plus. When you drop the pan you'll find out if there is any metal shavings on the magnet or if the filter is laying in the pan where it shouldn't be.
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no filters in town so i just flushed 10L and replaced it will some fresh stuff. overall it runs smoother but there is still a massive grind in the first couple gears. so i guess my next and final question would be what transmission should i find for this thing. go with original or is there something better i can replace it with.
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Post Fiend
Joined: Mar 2011
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From: Backwoods of Snowflake AZ
I'm pretty sure the E4OD didn't come out till 89. The other option was an AOD.
I am not 100% sure on this suggestion but maybe if you have the C6 the transmission modulator valve. Maybe even the vacuum line to it broke?
Trav
I am not 100% sure on this suggestion but maybe if you have the C6 the transmission modulator valve. Maybe even the vacuum line to it broke?
Trav
Postmaster
Joined: Nov 2011
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From: SW Florida
It's been my experience that 100% of the time when an auto trans makes GRINDING sounds, it's done with life.
Yank that sucker out and put in a 5 speed! If not then...
AOD: 4 speed (3+ overdrive). Not the strongest in stock form but can be made better with a good rebuild.
C6: 3 speed, NO overdrive. Pretty tough trans in stock form, and the predecessor to the E4OD/4R100.
You can ID your trans using these links. Look at the trans pan to figure out which one you have.
3 speed transmissions: http://www.fordification.com/tech/im...-transID07.gif
4 speed transmissions: http://www.fordification.com/tech/im...-transID08.gif
Yank that sucker out and put in a 5 speed! If not then...
AOD: 4 speed (3+ overdrive). Not the strongest in stock form but can be made better with a good rebuild.
C6: 3 speed, NO overdrive. Pretty tough trans in stock form, and the predecessor to the E4OD/4R100.
You can ID your trans using these links. Look at the trans pan to figure out which one you have.
3 speed transmissions: http://www.fordification.com/tech/im...-transID07.gif
4 speed transmissions: http://www.fordification.com/tech/im...-transID08.gif
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i know there are two different c6 for fords big block and small block. ive got the small block 351w in my truck. if i happen to have a c6 from a big block is it possible to switch the guts over from the BB c6 to the SB c6
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alright ill look more into it. would a c4 bolt up and keep the stock drive shaft. ive had a hard time finding info on possible swaps. my small block c6 is shot and i have sourced a c6 big block and a small block c4. whats my best option.