3.0 to 3.4 engine swap questions... - Page 2

SEAN_at_TLT · 03-26-2006, 07:23 PM

Here's a link to exactly that I posted on pirate more than a year ago

http://www.pirate4x4.com/forum/showt...=173918&page=4

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mt_goat · 03-27-2006, 06:19 AM

Sean, on this AC part of that thread:

"A/C Solution:
You need the electronic card from the 3.4L A/C cooling unit located behind the glove box in the donor vehicle. With the 3.0L configuration the card receives a signal from the negative side of the ignition, in order to work now it will now need to receive a positive signal from the ECU instead. You will need Toyota wiring diagrams to figure this one out."

Is the electronic card needed if you keep the 3.0 AC system in place and just swap out the compressor? That is what I was planning on trying if I can get the old 3.0 compressor lines to connect to the 3.4 AC compressor. Thanks

s t A t i c · 03-27-2006, 08:12 AM

yes i would like to know about the ac as well. I read you can keep the 3.0 ac in place you just have to change something.

SEAN_at_TLT · 03-27-2006, 09:43 AM

You can keep the 3.0 AC I believe with some modification. The one thing we never bothered to finish was the AC since some components needed to be replaced and it needed a charge anyway. Plus the owner of the truck lives in a fairly temperate place that never goes above 85° or so. One YT member who did a 3.4 swap early on gave me the info about the AC cooling unit. If you search you will find more recent info on that I'm sure.

I can verify the tach fix as I did that and it works perfectly. Same goes for everything else. Also since we did our swap ORS now offers a beautiful exhaust cross-over pipe so that takes care of one of the hardest and potentially most expensive parts of the swap.

mt_goat · 03-27-2006, 12:14 PM

Quote:

Originally Posted by SEAN_at_TLT

You can keep the 3.0 AC I believe with some modification. The one thing we never bothered to finish was the AC since some components needed to be replaced and it needed a charge anyway. Plus the owner of the truck lives in a fairly temperate place that never goes above 85° or so. One YT member who did a 3.4 swap early on gave me the info about the AC cooling unit. If you search you will find more recent info on that I'm sure.

I can verify the tach fix as I did that and it works perfectly. Same goes for everything else. Also since we did our swap ORS now offers a beautiful exhaust cross-over pipe so that takes care of one of the hardest and potentially most expensive parts of the swap.

Thanks Sean, yeah I have one of ORS's cross-overs now. Here are some pics of it:

http://community.webshots.com/photo/...42310107mrSdec
http://community.webshots.com/photo/...42310107vKoMhx

mt_goat · 04-07-2006, 03:30 AM

Hey Sean, nice write-ups in Off-Road mag on the 3.4 swap! I just got my June issue and you mention that you were able to use the 3.0 cruise control. That's great because I was wanting to do that too. How do you get the cable to hook up to the throttle body?

SEAN_at_TLT · 04-09-2006, 10:26 PM

Thanks for the positive comments! It's been nearly two years since we finished the swap so the finer details are not so fresh in my mind. It seems to me all we did was attach the old cable to the 3.4 TB. I'll have to check my notes and get back to you, otherwise it should be covered in next months issue of Off-Road.

mt_goat · 04-10-2006, 05:12 AM

Quote:

Originally Posted by SEAN_at_TLT

Thanks for the positive comments! It's been nearly two years since we finished the swap so the finer details are not so fresh in my mind. It seems to me all we did was attach the old cable to the 3.4 TB. I'll have to check my notes and get back to you, otherwise it should be covered in next months issue of Off-Road.

I already have the May & June issues, or are you saying there is going to be a part 3 issue? The old cable has a round ball on the end that doesn't fit in the 3.4 TB, unless maybe you did some cutting on the TB or maybe changed the end of the cable?

SEAN_at_TLT · 04-11-2006, 03:30 PM

I just got the May issue and was unaware that the June issue was already on newstands. I'll check my original notes and get back to you soon about the cruise control.

mt_goat · 04-11-2006, 04:46 PM

Quote:

Originally Posted by SEAN_at_TLT

I just got the May issue and was unaware that the June issue was already on newstands. I'll check my original notes and get back to you soon about the cruise control.

Thanks Sean. I didn't get it on the newstand, I got a subcription about a year ago when I heard you were doing a write-up on the 3.4 swap. The pics of welding the battery tray in helped a lot this week.

SEAN_at_TLT · 04-12-2006, 11:23 AM

Okay, I couldn't find anything specific in my notes but after thinking about it some more it seems to me that all we did was attach the 3.4 cruise control cable to the old (3.0) cruise control mechanism and then do the same with the vacuum lines. I was so easy that I don't think we even bothered to note it.

I suppose there could be a way to retrofit the 3.4 cruise control mechanism but we didn't bother since using the old unit was so simple and after testing it on the freeway it was also effective. I drove to LA from the Bay Area on I-5 (300 miles) and used cruise most of the way with great results.

mt_goat · 04-12-2006, 11:46 AM

Thanks very much Sean. I'll look at the two together again. The first time I looked it seemed like the CC end of the two cables were different. Yeah, I don't want to use the 3.4 CC if I can help it.

03-27-2006, 06:19 AM	#27 (permalink)
mt_goat Contributing Member Join Date: Nov 2002 Location: Oklahoma State Posts: 8,916	Sean, on this AC part of that thread: "A/C Solution: You need the electronic card from the 3.4L A/C cooling unit located behind the glove box in the donor vehicle. With the 3.0L configuration the card receives a signal from the negative side of the ignition, in order to work now it will now need to receive a positive signal from the ECU instead. You will need Toyota wiring diagrams to figure this one out." Is the electronic card needed if you keep the 3.0 AC system in place and just swap out the compressor? That is what I was planning on trying if I can get the old 3.0 compressor lines to connect to the 3.4 AC compressor. Thanks __________________ ~Dale~ 93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift front, Alcan springs rear, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" Body Lift, 1.5" ball joint spacers, manual hubs, TJM T-17, Warn m8000.

03-27-2006, 08:12 AM	#28 (permalink)
s t A t i c Registered User Join Date: Jan 2006 Location: New jersey Posts: 85	yes i would like to know about the ac as well. I read you can keep the 3.0 ac in place you just have to change something. __________________ 1992 4runner SR5 OME HD springs, OME shocks and struts SDORI BJ Spacers Superwinch Hubs 31" BFG's

03-27-2006, 09:43 AM	#29 (permalink)
SEAN_at_TLT Registered User Join Date: May 2004 Location: USA Posts: 752	You can keep the 3.0 AC I believe with some modification. The one thing we never bothered to finish was the AC since some components needed to be replaced and it needed a charge anyway. Plus the owner of the truck lives in a fairly temperate place that never goes above 85° or so. One YT member who did a 3.4 swap early on gave me the info about the AC cooling unit. If you search you will find more recent info on that I'm sure. I can verify the tach fix as I did that and it works perfectly. Same goes for everything else. Also since we did our swap ORS now offers a beautiful exhaust cross-over pipe so that takes care of one of the hardest and potentially most expensive parts of the swap. __________________ -Sean Trails Less Traveled Last edited by SEAN_at_TLT; 03-27-2006 at 09:47 AM.

04-07-2006, 03:30 AM	#31 (permalink)
mt_goat Contributing Member Join Date: Nov 2002 Location: Oklahoma State Posts: 8,916	Hey Sean, nice write-ups in Off-Road mag on the 3.4 swap! I just got my June issue and you mention that you were able to use the 3.0 cruise control. That's great because I was wanting to do that too. How do you get the cable to hook up to the throttle body? __________________ ~Dale~ 93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift front, Alcan springs rear, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" Body Lift, 1.5" ball joint spacers, manual hubs, TJM T-17, Warn m8000. Last edited by mt_goat; 04-07-2006 at 03:36 AM.

04-09-2006, 10:26 PM	#32 (permalink)
SEAN_at_TLT Registered User Join Date: May 2004 Location: USA Posts: 752	Thanks for the positive comments! It's been nearly two years since we finished the swap so the finer details are not so fresh in my mind. It seems to me all we did was attach the old cable to the 3.4 TB. I'll have to check my notes and get back to you, otherwise it should be covered in next months issue of Off-Road. __________________ -Sean Trails Less Traveled

04-11-2006, 03:30 PM	#34 (permalink)
SEAN_at_TLT Registered User Join Date: May 2004 Location: USA Posts: 752	I just got the May issue and was unaware that the June issue was already on newstands. I'll check my original notes and get back to you soon about the cruise control. __________________ -Sean Trails Less Traveled

04-12-2006, 11:23 AM	#36 (permalink)
SEAN_at_TLT Registered User Join Date: May 2004 Location: USA Posts: 752	Okay, I couldn't find anything specific in my notes but after thinking about it some more it seems to me that all we did was attach the 3.4 cruise control cable to the old (3.0) cruise control mechanism and then do the same with the vacuum lines. I was so easy that I don't think we even bothered to note it. I suppose there could be a way to retrofit the 3.4 cruise control mechanism but we didn't bother since using the old unit was so simple and after testing it on the freeway it was also effective. I drove to LA from the Bay Area on I-5 (300 miles) and used cruise most of the way with great results. __________________ -Sean Trails Less Traveled

04-12-2006, 11:46 AM	#37 (permalink)
mt_goat Contributing Member Join Date: Nov 2002 Location: Oklahoma State Posts: 8,916	Thanks very much Sean. I'll look at the two together again. The first time I looked it seemed like the CC end of the two cables were different. Yeah, I don't want to use the 3.4 CC if I can help it. __________________ ~Dale~ 93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift front, Alcan springs rear, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" Body Lift, 1.5" ball joint spacers, manual hubs, TJM T-17, Warn m8000.

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