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Thanks guys, I ran through the wiring shaking them while engine running and checked codes. No dice. Watch the tach two little blips. I’m convinced it’s happing only on first start up cold. Like I said on the old engine it coincided with the wait to start light blinking. The...

Thanks jrsavole: you read my mind. I was just getting ready to come back on and ask that question. I would really like all four bulbs to light up.

Thanks guys. Yea I am concerned about reliability. I forgot to mention it also hiccups once or twice after start up too before moving the truck. I do remember on the old motor the hiccups coincided with the wait to start light blinking.Seems to only act up before it warms up. I’ll get under her...

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.

Yea, d I’m not going to run DRL,s. I’m not sure i have them. That module doesn’t look anything like the one i thought was a my module. It’s a plastic case w/a circuit board the size of a flip phone right behind the headlamp switch. Does all four bulbs come on when you have your hi beams on...

I guess I’ll have to go to the junk yard to find the DRL module. I can’t find one anywhere unless someone out there has one. Thanks

Do you run spacers in the rear?

Thanks D do you have some pictures? Do you tow anything w/the 265/75,s. My speedo is right on using Google map app. My rpm,s seem to be 400-450 off. It is reading higher than my Tech 2 scanner hooked up while driving. Does the alternator pulley also affect the rpm too? I do have 245/75 on...

Do you have a rear view? Do the tires stick out a bit? 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...

Not sure what you mean

Thanks guys , I will check it w/ the scanner. But I bet it is because I had a turbo master on my old motor. If so I still have it. I think I have the belt also for the vacuum delete. I do not tow anything. I’m running 410 axle gears. 4” open exhaust no muffler. And w/ the TDC Offset set at -114...

Thanks guys for all the help. I’ll double check the hose routing. I’m not running the turbo master. New stock set up. I do remember seeing the turbo vacuum pot open and closing when disconnecting vacuum. I do believe I have the vacuum lines on right. I’m using a Tech2 scanner. Will it give me...

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

You not the EPA are you lol😎

Hi All, I believe I got the ac working. I had too much oil in it, thanks dbrannon 79. I wanted to thank everybody for there help. I really enjoy coming on here and trying to diagnose problems w/ you guys😎. I’ll be posting on this site again w/ other issues I have. Thanks again.

Where did I leave off ? Oh yea put the fan shroud back on new discharge ac lines,new manifold gauges. Did my normal routine got one can in, took about 1 hour, got the compressor to come on with the low pressure switch plugged in, second can in took a long time also. The Freon these days come...

Thanks guys I knew you would have some ideas. The temp. of the lines coming from the condenser Definitely not the same Temps. Shouldn’t that line where I touched not be that hot. It’s after the orifice. Doesn’t the line temp. go down after the orifice? The orifice tube is black and white. The...

I forgot, the bottom large aluminum line coming from condenser ( the one that has the orfice in it) Is hot to the touch. The upper smaller line I can touch, it’s not cold either. Maybe a clue?