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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: fmxr47 on February 03, 2016, 09:29:03 pm

Title: Tci controller for 4l80e
Post by: fmxr47 on February 03, 2016, 09:29:03 pm: Hello everyone, I just picked this truck up a few weeks ago and I'm trying to still figure out some of the things that have been done to it, let alone what needs to be done to it. I have this tci module bolted to the firewall and I don't know what model it is or what all I can adjust with it, my engine is. 6.5 td out of a 92 or 93 hummer supposedly, it is all mechanical and then the trans is a 4l80e it shifts funky and goes into overdrive way to soon, but the shifts are solid. I just want more info on this module and to find out if I can adjust how the kickdown operates as well as adjust the shift points (http://uploads.tapatalk-cdn.com/20160204/28df0fd5328775ae3cfaeb637ce9d0b0.jpg)(http://uploads.tapatalk-cdn.com/20160204/71ca34c9d70cda583340ab3790ae7756.jpg)

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Title: Re: Tci controller for 4l80e
Post by: 1967KaiserM715 on February 04, 2016, 07:11:18 am: Can't help with shifting or controller, but that engine is 1997 or newer GMC/Chevy F-code(emission exempt)

One can tell because of the side mount turbo, the dual thermostat housing, and the relatively flat intake

But someone did convert from the DS4 electric pump to the DB2 mecanical

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Title: Re: Tci controller for 4l80e
Post by: hatzie on February 04, 2016, 09:02:03 am: With the Model # and probably the Serial # you can likely get copies of the documentation from TCI.
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 04, 2016, 11:25:44 am: The harmonic balancer that I had to use was the earlier model though from a 92 or 93

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Title: Re: Tci controller for 4l80e
Post by: VileZambonie on February 04, 2016, 01:18:13 pm: http://www.tciauto.com/tc/support/
Title: Re: Tci controller for 4l80e
Post by: Irish_Alley on February 04, 2016, 03:24:44 pm: not to distract you from your current situation but i do have a tcu from a 93ish 6.5/4l80e sitting in my garage. i also have one from tci that im still trying to get hooked up lol. so im interested in this post
Title: Re: Tci controller for 4l80e
Post by: 1967KaiserM715 on February 04, 2016, 04:41:16 pm: Quote from: fmxr47 on February 04, 2016, 11:25:44 am
The harmonic balancer that I had to use was the earlier model though from a 92 or 93

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Well hard to know then, thermostat and front lift point indicates 97 and later.

And because of that, it is hard to say just swap tranny controllers, the early 4l80 used different voltages for shift solenoids, think up to 94.

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Title: Re: Tci controller for 4l80e
Post by: Irish_Alley on February 04, 2016, 06:10:12 pm: im not 100% familuar with these 6.5s had a 96 that we were trying to get running but in 94 they switched to a electronic throttle DS-4 injection pump till 2000. that looks like it has a throttle cable indicating 92-93 manual pump. now you can swap pumps around so besides that im useless
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 04, 2016, 06:52:26 pm: I'll do some looking around to find engine numbers on the block so I at least know that much, but who know what the trans is from as far as what year :/ dang truck broke down on me today for a second time with water in fuel issue, just put a new tank in it and fresh fuel, even an additive just in case and it still left me stranded, waiting on a tow truck as we speak

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Title: Re: Tci controller for 4l80e
Post by: hatzie on February 04, 2016, 07:28:24 pm: If you stopped driving because the water in fuel sender lit the dash lamp you've been had. The sensors in the Stanadyne 80 box filter base are less than reliable.
You have a late 90's 6.5L Turbodiesel engine. I'd ask the PO what happened to the much better 6.5l top loading Stanadyne filter manager that was mounted on the back of the intake valley?
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 04, 2016, 08:37:17 pm: I didn't stop driving It died, second time now, there was an extra 3rd tank added at some point for the biodiesel setup which doesn't have a cap on it, and is supposedly turned off, I'm thinking about removing all the extra junk and plumb the passenger side tank directly to the fuel pump and eliminate any possibility of bad fuel getting in from either the driver side tank which leaks or the biodiesel tank that is open to the atmosphere

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Title: Re: Tci controller for 4l80e
Post by: 1967KaiserM715 on February 04, 2016, 08:54:32 pm: is that what the two "pumps"? are for in the intake, been trying to figure those things out.

air in the injection system is really hard to diagnose, but if you run a clear line(like tygon) in the return to the pump(should be easy to find, top of injection pump short 3-4 inch hose) any major bubbles you have air, and you need to find the leak

is it mechanical lift pump or electric?(fuel pump)
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 04, 2016, 09:01:55 pm: It's an electric lift pump but I feel it is weak and plan on replacing, although I recall reading that I shouldn't get one over a certain psi, don't recall the number though, I think 15 psi max but like I said, I don't really remember

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Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 04, 2016, 09:03:28 pm: Oh and those two on top are part of the bio setup. Sorry, I misread at first

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Title: Re: Tci controller for 4l80e
Post by: Irish_Alley on February 05, 2016, 12:21:19 am: could you be sucking air from somewhere?
Title: Re: Tci controller for 4l80e
Post by: 1967KaiserM715 on February 05, 2016, 07:40:34 am: the preferred pump is AC-Delco EP158, specs are 9-14PSI, 22GPM, it is the stock pump for 1993 GMC/Chevy Turbo Diesels

it does require the special O-ring fittings, I solved by purchasing Dorman PN-800-170, just a 4 inch barbed fitting, so I could run rubber hose on either end
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 05, 2016, 07:25:22 pm: Thanks for the info! Does anyone by chance know what ports are what on the ip and on the tank selector valve so I can scrap everything I don't need and just run a supply and return line for the passenger tank alone.

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Title: Re: Tci controller for 4l80e
Post by: 1967KaiserM715 on February 05, 2016, 07:47:37 pm: On the tank, there should be three fittings, one is 3/8"-this is the supply, one is 5/16"- this is return, one is 1/4"-this is for emissions and is really just a vent if the charcoal canister is gone. Normally one would block it and use a vented cap.

If you don't plan on using drivers side, just remove the fuel selector, and when you remove the extra lines everything should be self explanatory, the bigger lines are the supply,

As for engine side, there should be a 3/8" inlet into the fuel filter, then a 1/4 out to injection pump-located in center of all the hardlines. The return comes off a metal line- and depending on setup should either exit over passenger valve cover or to the rear of the engine, again passenger side in the valley(should be a 5/16" hose)

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Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 05, 2016, 07:52:04 pm: Thanks a bunch for the help, I'll be looking at it tomorrow after some side work.

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Title: Re: Tci controller for 4l80e
Post by: Irish_Alley on February 06, 2016, 03:20:15 pm: forgot we do have some manuals for the 6.2 and 6.5
here (http://forum.73-87chevytrucks.com/smforum/index.php?topic=30115.0)
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 07, 2016, 01:32:06 pm: Thank you that was very helpful, I already have been reading a bunch of the manual

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Title: Re: Tci controller for 4l80e
Post by: Irish_Alley on February 07, 2016, 02:38:34 pm: working on getting these to the website also
6.5L DIESEL/TURBO DIESEL ELECTRICAL DIAGNOSIS MANUAL SUPPLEMENT
http://www.mediafire.com/download/32q73jdfjpa3fh2/GMT9495DSLUD_1994_95_GM_P_1994_GM_CK_DIESEL_ELECTRICAL_DIAG_SUPPLEMENT.pdf

1994 6.5LTD EFI OBD
http://www.mediafire.com/download/7222nzp0kitv8nf/GM_STG_16015_15_2_1994_6_5L_V8_Turbo_Diesel_EFI_OBD_I.pdf

and for the 4l80e
http://www.mediafire.com/download/2o21d84ygmh6sdb/GM_STG_17021_24_Hydramatic_4L80E_TRANSMISSION_Electrical_Supplement.pdf
Title: Re: Tci controller for 4l80e
Post by: fmxr47 on February 07, 2016, 04:30:12 pm: Sent from my iPhone using Tapatalk
Title: Re: Tci controller for 4l80e
Post by: hatzie on February 07, 2016, 10:31:46 pm: Quote from: Irish_Alley on February 07, 2016, 02:38:34 pm
working on getting these to the website also
6.5L DIESEL/TURBO DIESEL ELECTRICAL DIAGNOSIS MANUAL SUPPLEMENT
http://www.mediafire.com/download/32q73jdfjpa3fh2/GMT9495DSLUD_1994_95_GM_P_1994_GM_CK_DIESEL_ELECTRICAL_DIAG_SUPPLEMENT.pdf

1994 6.5LTD EFI OBD
http://www.mediafire.com/download/7222nzp0kitv8nf/GM_STG_16015_15_2_1994_6_5L_V8_Turbo_Diesel_EFI_OBD_I.pdf

and for the 4l80e
http://www.mediafire.com/download/2o21d84ygmh6sdb/GM_STG_17021_24_Hydramatic_4L80E_TRANSMISSION_Electrical_Supplement.pdf

The main archive folder link worked. Good.

That 6.5L textbook covers the 93 DS2 and 94-95 OBD 1.5 DS4.
I still need to scan the other 6.5L Diesel textbook for the 96 on up DS4 OBD II engines and the Oldsmobile 350 DX textbook.
Time time time...

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