Tranny question

WIKD · 06-24-2006, 09:53 AM

Hey Guys I'm new here and figured I should say hello first. I own a 88 Mustang LX with the 2.3 that I just swapped a month ago for another, less mileage and no knocking, motor. I now have a weird trans problems among some other gremlins. In the morning after start up the trans will not shift out of 1st unless I pull the shifter down into 2nd. Then it will not shift from 2nd to 3rd until I drive for about a mile or two in 2nd. If I try to manually shift it to 3rd it almost feels like it goes back to first but really feels more like it just slips. After a mile or two I can shift it into 3rd and all is well. Trans will shift normally until you turn the car off and let it sit for a few hours. Any ideas?

Shopteach · 06-24-2006, 06:58 PM

I'm not certain if these transmissions use a vacuum line or not. It sounds like symtoms of a leaking vacuum line to me. Look for a line running from the transmission to the intake manifold or the tree mounted on the firewall.

WIKD · 06-24-2006, 07:03 PM

Thanks teach. It does have a line from the modulator to the vacuum tree. I am hoping that is the culprit also. About an hour ago I replaced the small amount of rubber vacuum line because it seemed swollen. Find out tomorrow if it worked.

WIKD · 06-28-2006, 07:38 AM

Vacuum didn't fix it. Was told by someone that dirt in the governer causes this but needs to be rebuilt to cure. That's like $1000 and I don't think the whole car is worth it. Might just have to live with the problem.

06-24-2006, 09:53 AM	#1
WIKD Registered Member Join Date: Jun 2006 Posts: 6	Tranny question Hey Guys I'm new here and figured I should say hello first. I own a 88 Mustang LX with the 2.3 that I just swapped a month ago for another, less mileage and no knocking, motor. I now have a weird trans problems among some other gremlins. In the morning after start up the trans will not shift out of 1st unless I pull the shifter down into 2nd. Then it will not shift from 2nd to 3rd until I drive for about a mile or two in 2nd. If I try to manually shift it to 3rd it almost feels like it goes back to first but really feels more like it just slips. After a mile or two I can shift it into 3rd and all is well. Trans will shift normally until you turn the car off and let it sit for a few hours. Any ideas?

06-24-2006, 06:58 PM	#2
Shopteach Registered Member Join Date: Jan 2002 Location: Berryton, KS Posts: 13	Re: Tranny question I'm not certain if these transmissions use a vacuum line or not. It sounds like symtoms of a leaking vacuum line to me. Look for a line running from the transmission to the intake manifold or the tree mounted on the firewall.

06-24-2006, 07:03 PM	#3
WIKD Registered Member Join Date: Jun 2006 Posts: 6	Re: Tranny question Thanks teach. It does have a line from the modulator to the vacuum tree. I am hoping that is the culprit also. About an hour ago I replaced the small amount of rubber vacuum line because it seemed swollen. Find out tomorrow if it worked.

06-28-2006, 07:38 AM	#4
WIKD Registered Member Join Date: Jun 2006 Posts: 6	Re: Tranny question Vacuum didn't fix it. Was told by someone that dirt in the governer causes this but needs to be rebuilt to cure. That's like $1000 and I don't think the whole car is worth it. Might just have to live with the problem.

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