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I've decided to take the truck to a injector shop. They will run a full scan plus test injector pump pressure and pull the injectors and test them. If everything ok guess I'll put on a stock muffler as a trap. I really didn't notice much performance gain when I went to 4" turbo back and low...

Some time ago I had thought about installing an RV injector but was afraid of more black smoke. Will the Mach 1. 5 increase smoke( no dribbling but more smoke) ? Will it affect EGTs at high altitude and towing heavy load. Right now I have a problem above 7,000 feet and getting to max EGT...

Truck has about 80k miles. When I start it up with no throttle I get puff of black smoke and dry soot exiting the tailpipe. After initial puff the exhaust clear but yesterday I wrapped a white towel around exhaust tip and ran it for 3 minutes a idle. The towel came back black and slightly oily...

Tim, you have relieved me greatly. Thought maybe I was going in wrong direction!!!! Your explanation was very clear, you should be a teacher!! I will learn to be a little easier on the throttle. Thx. . George

I have a strange sound that sounds like air coming back thru my air filter when I let off throttle quickly. However it only occurs at very low speeds and low throttle setting, below 20 MPH and only after I complete a pull with my trailer at highway speeds and pull off to frontage road and maybe...

I have Pac-Brake on my 2001. Works great but I wouldn't have it without a controller. If TC doesn't lock up the brake doesn't retard well. Once brake is engaged and retarding all the load goes to the transmission (I'm told) and TC must be locked up to prevent overheating and overloading. That said...

Thanks for all the replies and pictures. It's obvious I need to do more homework because when it comes to increasing HP on a diesel I don't understand some of the terms you guys are using or the purpose of some of the upgrades. I assume a J-hook or turnbuckle attaches to the wastegate and forces...

Ok, I'll bite. What is a J hook or turnbuckle for?. Allow wastegate to open further? I'm not much of a dlesel guy. Is this something you can install yourself?

I have a Pac-brake with ATS 5 *Torque convertor/valve body (same setup as triple loc) and an ATS Co-pilot transmission/exhaust brake controller. I have controller set so brake range is +35 MPH. Below that speed the TC unlocks and brake will not operate. When towing in mountains I set it to drop out at...

Combined weight is 20,000 lbs. Grade varies from 6-8% but it's long pull, over 30 miles from Denver to top. Pacbrake is turbo mounted but I had problem before I installed Pac-Brake but have noticed EGT rises quicker since I installed the Pac-Brake.

"when u say hot do u mean egt or radiator?""" Kind of both. Haven't run over Rockies since I installed a 4 inch exhaust. Engine was definetly hot and almost in red zone, transmission around 220 and egt always wanted to exceed 1300 so I kept feathering back on the gas to hold 1250. Egt is a problem...

I would like about another 50HP to improve towing when trying to cross Rockies on hot days. Currently I'm down to 25-30 MPH and running hotter than I like by the time I crest at the Eisenhower tunnel on I-70, about 10,000 ft or 5,000 ft higher than Denver. I don't quite understand difference...

More info My wires are already 12 to 16 gage on truck and 14 gage on trailer. I now suspect, if I have a problem, it could be where they spliced into the Dodge receptacle wires to add another receptable in the truck bed. I get the same voltage drop at both receptacles which could be caused by a...

Jim, way more than I wanted to know!!! But thanks, I actually knew a lot of this, I did vibration analysis on rotating equipment in power plants for a few years. I received very conflicting information from diesel mechanics and Dodge. I originally assumed it was tuned to reduce "noise" but Dodge...

I have 2001 with tow package. I get anywhere from a 1 to 2 volt drop at my 5th wheel brake/tail lites when connected, drop dependent on how many lites I turn on. I'm connected into the standard Dodge 7 pin receptacle that came with the tow package. Even when not connected I can measure a slight...

Bmoeller, I already have a 180* T-stat and ATS TC/valvebody with lockup. These resulted in lower engine and transmission temps but when pulling steep grades at +6,000 ft in +90 degree weather it only delays the onset of higher temps. Eventually if pull is long enough and steep enough, say +10 miles...

Your distance and rise equals a 4% grade on average. That in itself is moderately steep over that distance. If it's 100 degrees outside you will get some transmission warming but 6,000 lbs is not terribly heavy. I tow 13,000 lbs up the Eisenhower Tunnel on I-70 and on hot days I can't make it (+95...

I've had a FASS now for a few weeks. Works ok but I think it may have been overkill. I tow a large 5ver with stock engine around the Co. mountains and my fuel pressure would go to <5 psi , sometimes zero when climbing steep grades at full throttle. They cost between $750-900 installed. I...

I'm trying to lower my EGTs. I get conflicting opinions on just removing the muffler or removing muffler and resonator. Talking to friends I get different answers on purpose of resonator. Also is it a big contributor to back pressure? One friend said just cutting out the mufler will...

THank you Thanks for replies. Found a leaking passenger side boot. Ordered new BD boots but haven't installed yet. This TDR is great. Between the replies and my research on this forum I learned where to look for leaks, how to make a plywood plug to check for leaks and how to correct the...