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Author Topic: 1991 V3500 - The Only Minivan I Will Ever Own  (Read 67781 times)

Offline ehjorten

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #45 on: January 05, 2015, 09:58:12 AM »
Hadn't posted much of anything on the minivan in a while.  This weekend I got busy on the front brakes!

New rotors, bearing races and bearings!  Also put on the new calipers that I have been hanging onto for a while.  She really needed new front brakes!  A while ago I re-did the rears with all new drums and bearings too!



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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline ehjorten

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #46 on: January 05, 2015, 10:01:27 AM »
Oh...and this little receiver hitch mounting I printed-up at work a while back too to mount one of our KW Emblems! :)



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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline Engineer

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #47 on: January 05, 2015, 08:04:01 PM »
I have been trying to find one of those KW emblems. fleabay, and the junkyards think they are gold bullion.

While we are on the subject.....

I talked to a guy just today about a K100 he had in the weeds. He is saving it for the engine. I could only see it from behind. Cab had been bumped, and the windshield was out of it for an extended period of time. Interior was to the point of junk. He said I wouldn't want it anyway because it was a setback front axle K100 and that they were the worst riding trucks on the road.

Oh, well. Someday I'll get to play B.J. and the Bear, just not today. :(

Hmmm..... I may have just missed my KW emblem. Well, atleast I know where it is.
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2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

Dad of an Eagle Scout, and a Life Scout

Offline pholliday1

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #48 on: January 05, 2015, 08:40:23 PM »
What's the scoop on the circa seventies tailgate?
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VETERAN AND LIFETIME NRA MEMBER. WHAT DO YOU STAND FOR?
1991 V3500 CREWCAB SRW 454TBI GMC
1991 v3500 crewcab SRW 454tbi 480le 6" lift
1990 V3500 crewcab Dana 60 FF 14b 5:38 ratio 40 inch 11" lift
1989 v3500 crewcab 454TBI 5" lift

Offline ehjorten

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #49 on: January 05, 2015, 11:10:18 PM »
What is it supposed to be Paul?  The little Chevrolet on the RH side?  Doesn't that look better?!  ;D
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline pholliday1

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #50 on: January 07, 2015, 04:42:35 PM »
LOL Bingo!!
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VETERAN AND LIFETIME NRA MEMBER. WHAT DO YOU STAND FOR?
1991 V3500 CREWCAB SRW 454TBI GMC
1991 v3500 crewcab SRW 454tbi 480le 6" lift
1990 V3500 crewcab Dana 60 FF 14b 5:38 ratio 40 inch 11" lift
1989 v3500 crewcab 454TBI 5" lift

Offline ehjorten

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #51 on: January 29, 2015, 11:58:52 AM »
So I have a re-occurring issue with my truck.  If I drive it around for a while...park it somewhere and go inside...come back out after 15 minutes or so and fire it up...it always fires right back up, but what seems randomly, it will die and when I go to start it back up it generally will fire right up, but it acts like it is cutting out or something.  If I get on the throttle it will run rough and sound like it is cutting out periodically.  If I put it in gear I have to get on the throttle right away, otherwise it will die.  When I am driving away it will buck and surge usually until I drive it away for 50 yards or so.  Then it clears up and runs just fine!

Armchair theories?...GO!!!

I am kind of leaning towards fuel pump, but I don't have a permanent gauge hooked up.  I like the gauge idea on the backside of the TBI with the extended fitting, but I don't want to hack-up my coil mount.  I am thinking I would need to have a new fuel line to the back of the TBI bent up and have some schrader valves in the lines at the back of the TBI for tapping in a diagnosic FI pressure gauge.

IAC?  Ignition module?  It doesn't happen usually at home...it is somewhat random when it happens and I am always away from home, so diagnosing it is a little more difficult.  There are no codes thrown.
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline Captkaos

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #52 on: January 29, 2015, 06:17:51 PM »
Is it throwing codes?  What does the injector spray look like?  I would guess fuel pressure first.

Fuel pressure adapter...
http://marine-performance-parts.com/cfmtechfuelpsiguageadaptorforgmtbi2843505774.aspx
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Offline ehjorten

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #53 on: January 30, 2015, 08:43:52 AM »
I've seen that Capt'n, but...I have also seen that it doesn't fit without hacking up your coil mount?  Is that true?  Unless you modify your fuel line, the extra length pushes the fuel line into the coil mount?
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline Dr_Snooz

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #54 on: January 30, 2015, 10:26:21 PM »
Quote from: ehjorten on January 29, 2015, 11:58:52 AM
Armchair theories?...GO!!!

Fuel pump main relay.
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1990 Chevy C-3500 Ext. Cab, 7.4L, 3L80

2009 Chevy Silverado 1500 WT 4WD, 4.8L, 4L60

Offline Irish_Alley

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #55 on: January 31, 2015, 03:38:58 AM »
don't you have dual tanks?
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When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline ehjorten

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #56 on: February 02, 2015, 09:36:32 AM »
I do have dual tanks, but have stopped using the RH one because it developed a pin-hole leak at the seam.  I can fill it about half-way.  Haven't gotten around to replacing it yet.
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline Irish_Alley

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #57 on: February 02, 2015, 06:55:21 PM »
http://forum.73-87chevytrucks.com/smforum/index.php?topic=29825.msg249543#msg249543
i had a problem with the switch. sometimes it would start up but then sputter and die and wouldnt start up right away, didnt notice if it was with only one tank or not but i replaced my switch and my problem is fixed
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Shifty

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #58 on: February 03, 2015, 09:26:17 AM »
On my old crew cab, I had the same issue....it sounds like the dual-tank issue I had, my valve wasn't opening 100% to whichever tank I was clicked to.  I replaced everything with GM parts, and a few months later, the valve stuck again, this time in the middle of the tank-change.  This is the reason I was looking to remove my second tank, and all the switching goodies out of my latest square. 
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Offline Captkaos

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Re: 1991 V3500 - The Only Minivan I Will Ever Own
« Reply #59 on: February 04, 2015, 09:14:00 AM »
Actron has a slightly shorter one that swivels that should fit.  I can't remember how long the CFM one was. I have used the actron one on my and just put it forward of the filter.

https://actron.com/content/gm-tbi-adapter-716
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