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09-06-2010, 09:31 PM
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#1 |
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Registered User
Join Date: Mar 2010
Location: Cullman Alabama
Posts: 56
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Not 2 happy
My tranny wont shift into 3rd gear anymore... last time it did that it was just out of time but i re timed it and it still wont shift, any ideas?
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71  C-15 350 three speed.
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09-06-2010, 09:43 PM
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#2 |
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Registered User
Join Date: Feb 2008
Location: Lake Stevens, WA
Posts: 623
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Re: Not 2 happy
What type of transmission?
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09-06-2010, 09:57 PM
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#3 |
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Registered User
Join Date: Aug 2009
Location: Newberry,FL
Posts: 277
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Re: Not 2 happy
Did you check the transmission fluid level?
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09-09-2010, 04:21 PM
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#4 |
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Registered User
Join Date: Mar 2010
Location: Cullman Alabama
Posts: 56
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Re: Not 2 happy
Turbo hydro matic
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71 C-15 350 three speed.
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09-13-2010, 12:08 PM
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#5 |
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Registered User
Join Date: Mar 2010
Location: Cullman Alabama
Posts: 56
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Re: Not 2 happy
Its not the tanny fluid... it sat for about 18 hours, when i drove it it shifted into 3rd the first time a accelarated but not anyother times..
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09-13-2010, 12:16 PM
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#6 |
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Registered User
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,648
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Re: Not 2 happy
Did you knock the vacuum line off that goes to the trans? That happens a lot when a guy is working in that area setting the timing or tightening the distributor down.
Also make sure that the hoses on both ends of the steel line to the modulator are in good shape an not split or swollen and soft. |
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10-29-2010, 03:43 PM
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#7 |
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Registered User
Join Date: Mar 2010
Location: Cullman Alabama
Posts: 56
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Re: Not 2 happy
The tranny line is good
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71 C-15 350 three speed.
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10-29-2010, 04:55 PM
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#8 |
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U.S. Army Green Beret Sniper
Join Date: Dec 2009
Location: Enterprise Alabama
Posts: 57
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Re: Not 2 happy
Your vacum line may be cracked or have a hole in it. Do you have vacum advance?
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10-29-2010, 05:18 PM
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#9 | |
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Registered User
Join Date: Sep 2010
Location: Los Angeles California
Posts: 352
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Re: Not 2 happy
Quote:
Someone else will chime in with the correct part name. It's a sealed plunger that shifts the Trans into high gear.. What happens is, when the fluid is cold, it's thicker, and the plunger works.. But as the fluid heats up it becomes more watery and can no longer actuate the plunger into high gear.. If you're in high gear on the highway or on a road.. the moment the trans kicks down into 2nd, it won't go back up into high gear.. If you let it sit for a few hours, it'll work fine until it heats up again.. J.
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1972 Custom Deluxe Highlander C20 1971 Javelin SST New Project 1971 Demon 340 1969 SS El Camino 1968 SS RS 396 Camaro 1967 Barracuda Formula S 1965 140/4sp Corvair Monza Convertible Sorry, but I don't do Fords. Last edited by JCD; 10-29-2010 at 05:19 PM. |
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