Engine has fallen in love with Second gear - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SlapFish · 10-23-2005, 09:21 PM

My truck seems to be fairly stuck in second gear when traveling normal city speeds (35-50 mph). It runs somewhat high in engine speed around 45. It's an '85 700 R4. It'll dislodge from 2nd if I really blast it though...however that's quite dangerous...

My dad found a thingie...that's all it is to us right now. It looks like it used to have vacuum lines, and looks like it connects to the transmission. It looks important.

Here happens to be a picture. Imagine that.

EDIT: Forgot to mention, we do have a theory it's some sort of downshift device.

jimfulco · 10-23-2005, 11:09 PM

Does the 700R4 have a TV cable? If so, it might be loose or broken.

Russell · 10-24-2005, 01:29 AM

It sounds like the problem is with your TV cable.

That vaccum solenoid will be for the lockup on the tranny. You need to make sure that your lockup is working correctly, or you'll burn the transmission up at higher speeds. It depends on the lockup to occur for proper lubrication.

bodydropped · 10-24-2005, 12:18 PM

mine did the same thing and it was the kick down cable that came loose and i put it right back on the carb and havent had anyproblems but i have a b&m lock up contoller on my truck

10-23-2005, 09:21 PM	#1
SlapFish Real Men Wear Orange Join Date: Oct 2005 Location: NC Posts: 89	Engine has fallen in love with Second gear My truck seems to be fairly stuck in second gear when traveling normal city speeds (35-50 mph). It runs somewhat high in engine speed around 45. It's an '85 700 R4. It'll dislodge from 2nd if I really blast it though...however that's quite dangerous... My dad found a thingie...that's all it is to us right now. It looks like it used to have vacuum lines, and looks like it connects to the transmission. It looks important. Here happens to be a picture. Imagine that. EDIT: Forgot to mention, we do have a theory it's some sort of downshift device. Last edited by SlapFish; 10-23-2005 at 09:21 PM.

10-23-2005, 11:09 PM	#2
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Re: Engine has fallen in love with Second gear Does the 700R4 have a TV cable? If so, it might be loose or broken.

10-24-2005, 01:29 AM	#3
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	Re: Engine has fallen in love with Second gear It sounds like the problem is with your TV cable. That vaccum solenoid will be for the lockup on the tranny. You need to make sure that your lockup is working correctly, or you'll burn the transmission up at higher speeds. It depends on the lockup to occur for proper lubrication. __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)

10-24-2005, 12:18 PM	#4
bodydropped Registered User Join Date: Jan 2005 Location: beaumont,tx Posts: 757	Re: Engine has fallen in love with Second gear mine did the same thing and it was the kick down cable that came loose and i put it right back on the carb and havent had anyproblems but i have a b&m lock up contoller on my truck __________________ http://img.photobucket.com/albums/v5...ropped/sig.jpg



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