Archived will not shift into od

[turbinesurgun]

i have a 98. 5 24 valve 3500 4X4 it will not shift into overdrive. can anyone help me with this

 

[OTRPU]

Might be off the wall but my old 99 wouldn't go into OD, they found that alternator diodes were shot and the batteries real low. Might wanna check just in case.



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Be Safe,

Steve J.

 

[Joe Mc]

Surg,



As strange as it sounds check the battery connections. Try taking all four of them off for an hour or so clean em up real good and give a through coat of Vaseline on the posts and the cable ends before you put em back on. Then turn the key on (don't start) and slowly depress the go pedal all the way to the floor, then slowly release all the way. Turn the key off and then turn it on wait to start as usual and start.



I was having hunting problems (in and out of OD) and this worked for me. May not work for you but, it's cheaper than a trip to the transmission shop. And if it doesn't work it's only a two beer job. Check engine to body grounds too. Make sure there isn't any corrosion on the computer plugs for the trans etc. Get some of that dielectric grease and give a good coating to the plugs while you have them off.



Hope this helps - please post reply if it does or doesn't.



Joe Mc

 

[emjay]

Are there any codes set? Could be the 4th gear solenoid.

 

[turbinesurgun]

codes

there are 9 codes p0743,p1389,p0753,p0720,p0748,p1765,p1693,p1689,p0380 please help in any way possible. am going to replace all batteries and terminals tomorrow, also lift pump, seems bad things all happen at once thanks.