Not shifting after engine swap

[cardana24]

I have been working on a 1990 Ranger with a 2.9, auto, 4x4. I just got finished with the engine swap and everything is running well....but there is a problem. The truck will not shift out of first gear! I can put it in reverse and it does fine, it goes into first gear fine too...but it will not up shift. What would cause this problem. This is the first automatic truck I have worked on so anything having to do with an automatic tranny is kinda new to me. Thanks for any help.

 

[gotmudd]

not sure what tranny you have but if you forgot to hook up your vacuum line at the back of the tranny to intake vacuum you won't build enough pressure to shift

 

[cardana24]

not sure what tranny you have but if you forgot to hook up your vacuum line at the back of the tranny to intake vacuum you won't build enough pressure to shift

I'm not sure what tranny it is either since it is not my truck. I posted the specs I know about it. Can you possibly describe where the vacuum line on the tranny goes? I sure no one has a picture but if for some reason someone does have a pic can you please post it. Thanks.

 

[Earl43P]

This should help.

http://www.asashop.org/autoinc/sept2000/mech.htm

 

[gotmudd]

should be a round canister on passenger side rear of transmission maybe threaded /held in with retainer clip @2inches long x 1 1/2 inches long with a nipple on the end. there should be a vacuum line from that to a hard line that should run along side the transmission to the back of the motor where another vacuum line will connect it to a vacuum tree on the intake. the color of the canister may vary by application.

[/IMG] mine is a gold color but i have seen them in silver as well, although if it is dirty you might not be able to determine color without wiping it off. if the vacuum lines are connected, you can pull the vacuum line off of the modulator and check for fluid. if fluid is present in the vacuum line your modulator is garbage and needs to be replaced. if you have to replace the modulator, they come preset but there is an adjustment for firmness of shift. to adjust remove vacuum line and using a very small standard screwdriver turn the adjustment screw an 1/8th of a turn [clockwise for firmer, counterclockwise for softer] at a time until desired firmness is achieved. don't go any more than an 1/8th of a turn at a time or you will get too much firmness, if you don't feel comfortable adjusting yourself a tranny shop can do it for you, it will be drivable on the base adjustment. please note that the picture i posted is of a mid 70's C6, but i do believe that locations are the same. atleast as far as any tranny i have messed with whether it be chevy, ford.

 

[cardana24]

should be a round canister on passenger side rear of transmission maybe threaded /held in with retainer clip @2inches long x 1 1/2 inches long with a nipple on the end. there should be a vacuum line from that to a hard line that should run along side the transmission to the back of the motor where another vacuum line will connect it to a vacuum tree on the intake. the color of the canister may vary by application.

[/IMG] mine is a gold color but i have seen them in silver as well, although if it is dirty you might not be able to determine color without wiping it off. if the vacuum lines are connected, you can pull the vacuum line off of the modulator and check for fluid. if fluid is present in the vacuum line your modulator is garbage and needs to be replaced. if you have to replace the modulator, they come preset but there is an adjustment for firmness of shift. to adjust remove vacuum line and using a very small standard screwdriver turn the adjustment screw an 1/8th of a turn [clockwise for firmer, counterclockwise for softer] at a time until desired firmness is achieved. don't go any more than an 1/8th of a turn at a time or you will get too much firmness, if you don't feel comfortable adjusting yourself a tranny shop can do it for you, it will be drivable on the base adjustment. please note that the picture i posted is of a mid 70's C6, but i do believe that locations are the same. atleast as far as any tranny i have messed with whether it be chevy, ford.

Thanks for the good info!! I will check that out tonight. From the picture you posted it looks like the vacuum line is a metal line? Is that correct? Because the line that I don't have hooked up is one of those hard plastic vacuum lines with rubber ends on it.

 

[gotmudd]

Thanks for the good info!! I will check that out tonight. From the picture you posted it looks like the vacuum line is a metal line? Is that correct? Because the line that I don't have hooked up is one of those hard plastic vacuum lines with rubber ends on it.

yours is probably new enough that it has the hard plastic line [5/16 i think ] with the rubber vacuum lines on each side.

 

[cardana24]

yours is probably new enough that it has the hard plastic line [5/16 i think ] with the rubber vacuum lines on each side.

I'll post back in a little bit, I am going to go check it out now.