LUVTruck.com

Alrighty a buddy of mine has a 2.3L pup with a surging idle. IT will only do this after it warms up a bit (im guessing when it kicks out of the highidle circut on the choke). Is this just vac lines, where should we look? Thanks.

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1980 LUV 4x4, going under re-construction...

Yup should be the vac lines...If not Planet has a write up on this very issue on the 2.6, you might want to refer to that as well to help figure out the problem.

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'80 Luv 4x4, 3" BL, 1.5" SL, 32/36, 2.25" exhaust...and fuzzy dice.
'95 Toyota 4Runner Limited 5-Speed.

thanks man. I just figured i would post here since its kinda like LUVtruck.com is the carbureted Isuzu truck site and then the Planet is the EFI Isuzu truck site

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1980 LUV 4x4, going under re-construction...

LOL, good point though, most of the guys on planet are running '88 or newer trucks with EFI...maybe we need to join the ranks??? or wait i already have since my parent's basiclly gave me the '88 Trooper

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'80 Luv 4x4, 3" BL, 1.5" SL, 32/36, 2.25" exhaust...and fuzzy dice.
'95 Toyota 4Runner Limited 5-Speed.

Disconnect and plug the big vac line from the mixture control valve to the intake right under the carb. If that cures it, the MCV is bad. My 86 had the same symptoms and that is what it turned out to be. You could hear the MCV leaking in through the bottom basically all the time instead just when the throttle snaps shut like it is supposed to do.

I also had sort of simlar problems right after swapped motors and it went away when I unhooked the fuel evap canister purge line. I have not spent the time to figure out if it is the canister or something in the carb.

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95 Isuzu Trooper Daily Driver
86 Isuzu Trooper reliable backup
77 LUV 2wd stock beltway blaster (resting)
79 4x4 LUV project: 2.6L, 5spd, 31s (eventually)

MEPR: Man, my 4x4 makes all other LUVs look good

well i talked to my buddy just now. He said he just started pulling vac lines and seeing what happened. The first line he pulled and plugged fixed it. So its something like what your saying 800, ill check the MCV

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1980 LUV 4x4, going under re-construction...

Alrighty well we have decided to try and replace the soloniods on the carb. Im guessing one is the MCV wich in the process of pulling my stupid ass twisted off the wire. So now theres this harnes that has 2 solonoids on it and the choke. Does this sound like it? I shure hope so becouse it looks expensive and i just broke it

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1980 LUV 4x4, going under re-construction...