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Chevy Express/GMC Savana Owners: Meet the Members

38 messages,  Last post on Jul 11, 2009 at 2:14 AM

You are in the Chevy Express & GMC Savana Forum. Your Host is Karens

What is this discussion about? Chevrolet Express, GMC Savana, GMC Savana Cargo, Van

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#32 of 38 engine no start after swap by williejack1 May 12, 2009 (5:48 am)
Hello to all , newbie on this site ,have a ? i own a chevy express 1500 mark 111 conversion 1998 5.0 vortec just did a motor swap out had a wiped cam so i found a good deal on e-bay for another 5.0 vortec with a LT1 cam the cam being the only difference of course with new rocker arms ,springs,locks,gaskets now that we finally have the motor in it does not want to start,now the snap -on scan tool reads out no injector pulse width so i am a little worried [,have had trouble in the past with no injector pulse],of course the dreaded pass lock issue,now i did by-pass the pass lock system a little while before i did the motor swap,but i wonder if the pass lock is my whole issue again,or could there be another solution here or how to go from here,any suggestions would be appreciated from the tech heads out there. Replies to this message: jgarnaas (May 12, 2009 9:06 am) williejack1 (May 26, 2009 8:20 pm)
#33 of 38 Re: engine no start after swap [williejack1] by jgarnaas May 12, 2009 (9:06 am)
Replying to: williejack1 (May 12, 2009 5:48 am) Sounds like the onboard computer isnt recognizing the new engine.Have you reprogramed the computer with the new engine code number.I think that has to be done on all swaps due to epa standards and emmissions,or the brain from the old engine has to be replaced to stay with the old engine Replies to this message: williejack1 (May 26, 2009 8:20 pm)
#34 of 38 Re: engine no start after swap [jgarnaas] by williejack1 May 26, 2009 (8:20 pm)
Replying to: jgarnaas (May 12, 2009 9:06 am) sorry for the long delay in responding,thought the computer might have to be done here but before laying out that kinda cash wanted to get the motor to fire up at least,found out that this cam was actually a lt4 hot cam which by talking to summit they say wont work will never run,now every now and then it will stumble sputter for maybe 10 seconds seems like timing and i know computer takes over timing as long as you are tdc after about 2 seconds but this should fire up with starting fluid if only till it burns off,guy i bought motor from swears that this combo will work,after talking tom summit i want to get a stock camshaft only because the top end of this motor is new as i posted so looking for a good price on a 305 hydralic roller cam for the vortec,trying to get the a- hole who sold me this to at least split the cost with me.sorry for the ramble just at my wits end with this .
#35 of 38 Re: Chevy Express/GMC Savana Owners: Meet the Members [claires] by cndworker Jul 10, 2009 (5:38 pm)
Replying to: claires (Oct 27, 2006 5:05 pm) Hello, not sure if this is the right place for me,   I'm a worker with a 2007 chev express 2500. This van works for a living, as do I.   Would appreciate any experience regarding the best tires and any related info about tire pressure and front end issues.   Feel free to e-mail me   John Replies to this message: jgarnaas (Jul 10, 2009 6:50 pm) cndworker (Jul 11, 2009 2:14 am)
#36 of 38 Re: Chevy Express/GMC Savana Owners: Meet the Members [cndworker] by jgarnaas Jul 10, 2009 (6:50 pm)
Replying to: cndworker (Jul 10, 2009 5:38 pm) I put 17 inch wheels with 265/70/r17 tires on my 2500 van.I used goodyear wrangler silent armor tires,and like them alot,no problems.It raised the van height up an inch more from the ground.Use a load class E tire for light duty trucks and suv. Replies to this message: cndworker (Jul 11, 2009 2:14 am)
#37 of 38 Tires by tireman9 Jul 10, 2009 (7:08 pm)
John There are two different things to consider.   Tire load capacity and Performance   Load capacity is controlled by size and inflation pressure. With a 2500 (3/4 ton) I suspect you plan on carrying some loads. Your van came with a Tire Placard that specifies the original tire size and the recommended inflation for the expected load. You should not run a smaller size tire or less inflation unless you have put the van on a scale to be sure you are not overloading the tires.   For "Performance" or Ride, Hanbling, Wet, Dry and Snow traction. The first question I would ask as a tire engineer is "What do you like about your current tire and What do you not like?"  Once you have identified the performance characteristics that you want then the tire engineer or sales person has the information needed to fill your wants.
#38 of 38 Re: Chevy Express/GMC Savana Owners: Meet the Members [jgarnaas] by cndworker Jul 11, 2009 (2:14 am)
Replying to: jgarnaas (Jul 10, 2009 6:50 pm) thank you

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