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Hi all I’m trying to get “Wait to Start” light working. According to my owners manual I shouldn’t even have a WTS light just a GP light. There are a couple of stickers on the cluster not sure what they mean. The WTS light was working before. I pulled the cluster and found a wire on the GP light...

Hi all, I’m trying to use my scanner to diagnose an engine cutting out after start up. Just a fast little hiccup . I want to see what’s the IP is doing when it happens right after startup. After inputting truck data and starting it up, the scanner disconnects and I have to re-enter data again...

Hi all, I just got done w/ a new Optimizer build on my 95’ Duelly. It just started to cut out when backing up. Just a hiccup always in reverse. Never in drive. One time it did shut off. New 5521 IP, LP, known working PMD behind bumper, everything new. Any ideas? Thanks.

I’m getting ready to get new tires on my 95’ Duelly. I would like the rear tire to stick out a little and fill the wheel well a little more. Not too much that it would rub. Would not be apposed to to spacers and what would the spacer width be. Also wouldn’t be apposed to a different size in the...

Hi all I have a new GM 8 turbo on my new Optimizer. I can’t remember what my boost gauge readings were on my old stock one that came on the truck. I’m not sure this one’s working properly. When under a load going up hill no trailer I floor it and it jumps up then immediately drops to zero...

What’s the tallest tires can I put on my 95’ K3500 Dually with out rubbing ? Rear? Front? Thanks

Hi all just trying to finish up my Optimizer build but I can’t get a good compressor. Bought 2 new Murray compressors and both were bad, What are the odds of that. Both of them started screaming right out of the gate when I jumped the pressure switch. The first one I didn’t let it run long...

Hi all, I’ve combed through all the posts on this subject and boy there are a lot. I can’t decide how to do it. CDR hose routed to turbo inlet tube (factory )? Or the hose routed to the turbo outlet at the upper intake, would there be the right amount of vacuum to operate the CDR properly? Also...

hi all I didn’t see a section for transfer cases. I pulled the output sensor out of the rear of my BW4401 transfer case broke off the hold down bolt. Could not get to it so I removed the 6 mounting bolts and rotated the case down to where I could get to it and repair it. Rotated case back up...

Hi all I’ve been on here a lot lately w/ my new Optimizer build. All the guys on here are great and very helpful. Is the anyway I can get into 6.5 Technical Library to take advantage of the manuals on these trucks? I’ve tried several times w/ no luck. Maybe I’m doing something...

Anybody on here have any trouble on here accessing the TL on here? When I click on the blue line I get nothing maybe 1or2 comes up. It might be my browser. I’m using an ipad Thanks.

Trying to take advantage of our tech library Is there something wrong. I click on the blue words and nothing comes up. I tried our site online and on my favorites on my iPad. Thanks.

Excited to get my new scanner. You think for that price it would have a users manual included. I guess that’s extra. Anybody ever buy one of these? I guess I’ll go hunting on the web.

I’m getting close to firing up my Optimizer build finally. I have the GMTD scan basic but I need the GMTD scan tech. Can’t find it anywhere. I got my free GMTD scan basic from English Motors. I guess they closed up shop. I did see one on a web site and the amount to buy it...

Hi all, I’m trying to figure out where this connector goes (2nd pic.) I labeled most of the wiring before I took everything apart last year but not this one. Could it be the connector to the missing 4x4 actuator? Somebody before me installed a cable set up. The white connector ( I marked...

Hi all finally got my new Optimizer set in my truck. I went ahead and bolted the rebuilt 4L80E trans to it and set it in all by myself. I didn’t install torque converter bolts before I set the motor in didn’t want to get under it while it was on the hoist. When I got under the truck to install...

Hi all, getting close to installing my new Optimizer motor. What are you guys putting on the fire wall in the engine bay? I’ve seen the Dyna Pad product but I’m looking for something a little thinner and that it would stick to the wall and handle the heat. Thanks Gus.

Hi all, what is everybody using for firewall insulation? I gave up on finding an OEM replacement. I wanted to check before install my engine. Or should I not even worry about about it. I imagine these motors put out more heat than gassers. I also have the dash out for repairs and there is also...

Hi all, starting to wire up my glow plug harness on my Optimizer build I got from Quadstar. My 95’ factory harness has two fuseable links one for each side installed in the two large orange wires before they branch out to the eight blue wires going to theGP,s. And why does the left bank side...

Hi all anybody know where I can find a pump bracket 15589748. can not find it anywhere