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10-20-2003, 03:04 PM
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#1 |
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Registered User
Join Date: Dec 2000
Location: Flagstaff, AZ
Posts: 140
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700r4 question
I have an 82 2wd blazer and the transmission is on its last leg. I am planning on replacing it as soon as I can but in the meantime, I have to let up off of the gas (all the way) for it to shift. The first shift is pretty hard and the rest are ok but it is still a pain. Is the tranny controlled by any vacuum lines or is there something that I can replace that can fix the problem (for now)?
Any help would be appreciated! |
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10-20-2003, 03:56 PM
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#2 |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
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How does it run otherwise? It could be your throttle position sensor (TPS) going bad....
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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10-20-2003, 04:03 PM
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#3 |
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ROCKET POWER!
Join Date: Feb 2003
Location: Finland, Europe
Posts: 509
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a 1982 C/K truck would not have a TPS unless someone installed fuel injection at some point or the truck is a diesel with c/c?
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What did i do last nite? I had a wonderful time, That's what they tell me What did i do last nite? 1979 C-10 shortfleet: Olds 350, Th400, 12 bolt Current project: 1969 Olds 455 W-30, needing a rebuild |
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10-20-2003, 06:42 PM
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#4 |
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Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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The 700 uses a TV (throttle valve) cable, and it uses the line pressure to control shifts. Cable out = larger throttle opening. They do not use vacuum at all, like a TH 350 or 400. You may be able to reset the cable to help it out, providing the trans is not already toast.
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1974 Jimmy- 5.3/4L80e/NP241 |
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10-20-2003, 09:57 PM
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#5 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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TV cable adjustment.
http://www.73-87.com/garage/tvcable.htm |
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10-21-2003, 09:49 AM
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#6 |
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Registered User
Join Date: Oct 2003
Location: Chesapeake, VA
Posts: 734
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Yup, sounds like Throttle Valve cable adjustment...
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Semper Paratus |
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10-21-2003, 02:30 PM
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#7 |
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Registered User
Join Date: Dec 2000
Location: Flagstaff, AZ
Posts: 140
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Thanks, I will actually replace it and adjust it after that because the plastic that connects to the tranny is broken. I will let everyone know how it turns out.
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10-26-2003, 11:23 PM
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#8 |
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Registered User
Join Date: Dec 2000
Location: Flagstaff, AZ
Posts: 140
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The Blazer never shifted so well in its life!
The funny thing about it is that it only took 1 minute. I open the hood and hop in (and I'm lazy so I don't even pull of the air filter housing). I fumble around until I can push the little tab in and pull the cable housing with my other hand and pull it a little. I figured that I would try it just a little bit and adjust it after that. I went back inside to get the keys and got busy and forgot about it. Later on, I get in the Blazer, start it up and start driving down the street... before I know it it shifts smoothly and I wasn't even expecting it because I forgot I even adjusted the cable. HOLY CR*P, I don't think I've been this happy about something so small in my life. Thanks for everyone's input. This board is awesome and the people are even better! 
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10-26-2003, 11:40 PM
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#9 |
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Registered User
Join Date: May 2003
Location: Lake Oswego, Oregon
Posts: 1,028
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hah ai know that feeling. just makes you want to do a huge burnout and hug your truck. i thought my 700 was going out because it would go crazy in 3rd gear and jerk. but it turned out that my fuel pump was going out and the bowls wouldnt empty out till it shifted into 3rd. anyways, happy motoring!!!!
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Ken Morgan For fun: 1964 Volvo 122 For slow: 1984 Chevrolet C-10 For everything else: 1997 BMW M3 |
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