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1962 Panel · 09-13-2017, 11:29 AM

Thanks for the replys guys, pretty much backed up what I was thinking. It does always have about a half dozen trans codes stored all the time but only ever had one engine code "unable to find correct idle speed" or something to that effect which I always attributed to the vacuum leak since I replaced the IAC and it didn't help the problem. Technically the transmission I swapped in was a 4L60 being that it was from a 92 truck, but identical to a 700r4 other than the name GM gave it. And my friend is considering going back to the 4L60E anyway, because he is convinced that is the problem, but I suppose it would be better in the long run to have the electronic control back and be able to lock the torque converter properly and so on.
Thanks for the insight!

09-13-2017, 11:29 AM	#4
1962 Panel Registered User Join Date: Jul 2014 Location: Wisconsin Posts: 47	Re: 4L60e to 700r4 swap Thanks for the replys guys, pretty much backed up what I was thinking. It does always have about a half dozen trans codes stored all the time but only ever had one engine code "unable to find correct idle speed" or something to that effect which I always attributed to the vacuum leak since I replaced the IAC and it didn't help the problem. Technically the transmission I swapped in was a 4L60 being that it was from a 92 truck, but identical to a 700r4 other than the name GM gave it. And my friend is considering going back to the 4L60E anyway, because he is convinced that is the problem, but I suppose it would be better in the long run to have the electronic control back and be able to lock the torque converter properly and so on. Thanks for the insight! __________________ 1962 4x4 Panel Delivery. 327 / 300 HP, Orig. SM420, Rockwell T221, 10 Bolt Rear/ Dana 44 Front. Project. 1977 Ford LTD, 302/C4, 18,000 mile survivor, daily driver. That's right, a Ford. I'm bi-partisan.