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jfoley · 12-23-2018, 03:14 PM

Based on the rpm it is not shifting into 4th. I shifted down one click and no rpm change at highway speeds so the selector must be in the correct position. If I shift up it goes into neutral. I adjusted the TV cable and it goes 1-2 at 15 and 2-3 at 30 mph. It is definitely a 700r4 based on the pan. I don’t know if I have a TCC shift valve. I thought you could run without locking up the converter and still use 4th. I wonder if they used the dipstick and tube from the TH 350 that was originally in the blazer? I ordered a new dipstick and tube for 700r4s but it’s a real pain to reach the bolt holding the tube on the bellhousing.
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12-23-2018, 03:14 PM	#13
jfoley Registered User Join Date: Dec 2016 Location: Boulder City, NV Posts: 23	Re: 7004r won't shift into 4th Based on the rpm it is not shifting into 4th. I shifted down one click and no rpm change at highway speeds so the selector must be in the correct position. If I shift up it goes into neutral. I adjusted the TV cable and it goes 1-2 at 15 and 2-3 at 30 mph. It is definitely a 700r4 based on the pan. I don’t know if I have a TCC shift valve. I thought you could run without locking up the converter and still use 4th. I wonder if they used the dipstick and tube from the TH 350 that was originally in the blazer? I ordered a new dipstick and tube for 700r4s but it’s a real pain to reach the bolt holding the tube on the bellhousing. Posted via Mobile Device