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 > Your search for posts made by 'mapguy' found 46 matches.

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RE: Super duper plug in code scanner w. WiFi?

If you want to access all the various modules in a bidirectional mode you have to step up into the +/- $300-$500 range. This gets you pro features/functionality like graphing PID's and learning for replacement parts. All depends on what you want to do....
mapguy 11/27/19 10:10am Tech Issues
RE: Brake fluid change?

Hydraulic Brakes systems are not 100% sealed. They are better sealed today than in the past. Fluid dynamics dictate that air does enter the master cylinder reservoir every time the pedal is pushed to activate the brakes. When the pedal is released air escapes the master cylinder as the fluid retracts. This is a simplification of a complex work cycle in a complex engineered system. To have a 100% sealed system would require the system have a fulltime pump and valve spool system to reverse the fluid flow. Air entrance into the fluid happens several ways even in a properly maintained system. Cooling in high heat system cycles can entrap air in fluid. One of the many reasons why periodic fluid changes are needed.
mapguy 11/12/19 01:02pm Tech Issues
RE: I take back all the good stuff I've said about Les Schwabs!

stopped using LS about 1987 due to repeated issues with poor workmanship and out right dishonesty to cover up.
mapguy 11/10/19 04:19pm Tow Vehicles
RE: Brake fluid change?

... My data is in the file cabinets and computers of the firms I worked at over a 35 year mechanic/Fleet Management career. Data is available from many resources besides the OEM manufacturer in all the business segments named. If hard data is what you need - where is yours to support your position. You have only attacked the real world knowledge that is trying to help educate people. Bottom line here is safety and that is being ignored for the most part in this thread. ..... So according to your "data" maintenance schedules from manufacturers are insufficient both for routine service and also for safety. Let us forget the analysis. What are your recommendations for overall maintenance requirements? Sorry, I am done. Glad you "won"
mapguy 11/10/19 12:10pm Tech Issues
RE: Brake fluid change?

... Real world experience in commercial vehicles, construction equipment, powersports, motorsports and of course RV's has shown me that "Owners Manual" maintenance requirements are the minimum needed to meet Warranty requirements. ...... Again, where is the data? I also doubt that maintenance schedules are just a minimum needed for warranty purposes. Dealers want the manufacturers to provide extensive requirements. Interesting that you focus on only one point in a response.You are focused on one point, not the big picture of vehicle safety and lifetime ownership costs. My data is in the file cabinets and computers of the firms I worked at over a 35 year mechanic/Fleet Management career. Data is available from many resources besides the OEM manufacturer in all the business segments named. If hard data is what you need - where is yours to support your position. You have only attacked the real world knowledge that is trying to help educate people. Bottom line here is safety and that is being ignored for the most part in this thread. No, I don't change my oil @ 3k.... BTW, my current 2nd career revolves around the usage, storage, and analysis of location data.
mapguy 11/10/19 10:33am Tech Issues
RE: Brake fluid change?

Would you send an email along with documentation to the Dodge Ram technical people? They did not include that recommendation. Why would I bother. I understand the function of the "Owners Manual" maintenance schedules in bigger picture of vehicle or machinery ownership.It is clear many don't. Real world experience in commercial vehicles, construction equipment, powersports, motorsports and of course RV's has shown me that "Owners Manual" maintenance requirements are the minimum needed to meet Warranty requirements. These maintenance schedules are not developed for insuring your vehicle is going to have maximum life with minimal lifetime ownership cost. In my experience power steering fluids and brake fluids are very rarely addressed in Owners Manuals maintenance schedules especially in the Automotive industry.
mapguy 11/10/19 09:24am Tech Issues
RE: Brake fluid change?

Surprising the response here regarding the operational safety aspect in regards to brake system maintenance. When brake fluid fails -it gives no warning at all - one push on the brake pedal it works and the next push the pedal drops to the floor. No matter what has been posted here -brake fluid does need to be changed on modern vehicles, too. Operating environment has a great impact on the life time of brake fluid. Brake fluid life is longer in areas of low humidity and or low moisture. Example the desert SW. Tow vehicles subject the brake fluid to much higher heat and longer use cycles than a grocery getting vehicle. ABS components fail from contaminated (dirt/moisture) fluid easily. Price out these components - it is much cheaper to flush the fluid periodically.
mapguy 11/08/19 05:51pm Tech Issues
RE: Gas pump

What is a good replacement pump for my fuel pump on my fury 2910 tow hauler. It is a piece of junk and sticks. What brand model of pump? If Great Plains RV model - get a kit for an EZ8 model -same pump just different model # to force purchase of parts thru RV dealer at increased cost. I learned the hard way.....
mapguy 11/07/19 05:56pm Toy Haulers
RE: Tow Vehicle Battery and Alternator

Sorry - late to the party.... Personally, I prefer external regulation/control on non ecu controlled vehicles. Check the link for info...this is one source. https://alternatorparts.com/quicktifier-external-bridge-rectifier.html details of how this works has been detailed by Mexicowanderer here many times.
mapguy 11/07/19 02:53pm Tech Issues
RE: Towing on snowy roads

Good info, thanks all. I have a good set of steel link chains for the truck, they have been test fitted and work. Will be picking up a set of cables for the TH. I don't expect to have to use them, and if it gets bad, and I do chain up, I will be using my best judgement on whether to continue or find a safe place out of the way of the trajectory of those unlucky folks that think 4x4 will save them. I didn't mention, but I do have some experience in the snow, drove the ski bus for years, and we would chain that up at the first place available when required. Personally would not bother with "cable" chains for the trailer. They are not durable at all. Don't need bar reinforced or anything special -just get real chains that fit properly. Install them/adjust them at least once in a low stress environment.
mapguy 11/06/19 06:53pm Toy Haulers
RE: Towing on snowy roads

I have always used this WAC: https://apps.leg.wa.gov/WAC/default.aspx?cite=204-24-050 I have not found a RCW covering tire chain use (only studs). Do you have additional links? Citations for these type of infractions reference RCW on the citation. WAC is the administrative code. hint -traction devices not chains a easy starting point is 47.36.250 but make sure you read all the "dispositions". Also, WSP under WAC has wide latitude to internally set rules policies and procedure to enforce RCW. Statements like this in an RCW means WSP has that latitude for the statue: "The Washington state patrol or the department may specify different recommendations or requirements for four wheel drive vehicles in gear." https://app.leg.wa.gov/RCW/default.aspx?cite=47.36.250 Remember that reading RCW and WAC is not simple. The starting point is always "an liberal interpretation" unless statue states otherwise.
mapguy 11/06/19 06:48pm Toy Haulers
RE: Towing on snowy roads

In Washington, a 4x4 locked in gear does not need to have chains unless the signs are out for trucks to use chains. You must carry chains! Normally you would install when required on the rear drive axle and on the last braking axle of trailer. https://www.wsdot.com/winter/tires-chains.htm If your vehicle is over 10k lbs GVWR or you are towing, you must chain up in WA even if you have 4wd anytime chain controls are posted. Typically a single drag chain on the trailer can be mounted on any wheel of any axle that has brakes. If your trailer does not have brakes, you must still mount a set of chains/cables to one wheel. My experience would be that a single drag chain on the trailer does not actually meet Revised Code of Washington(RCW) upon a liberal interpretation. Many WSP officers are too busy when weather is poor to strictly enforce this issue. However, get into an accident and or get stuck -the ticket will be painful along with increasing your "at fault" risk... Also, remember that as soon as you connect any trailer to a vehicle per RCW -you are subject to being considered a "Truck" for many driving situations including speed limit and snow chains. A tip on the trailer -make sure your electric brake wiring is fastened down properly and the splices are weather tight. WSDOT uses lots of brine water and mag chloride for deicer -this stuff reeks havoc on electric connections. Make sure the chain/cable tails are cut back as much as possible to minimize damage to the trailer. 2nd tip. make sure your brake controller is set to lead the truck slightly for the best control.
mapguy 11/06/19 02:14pm Toy Haulers
RE: Find any place on the planet without an address

I would like to know how Enhanced e911 is going to incorporate a address storage system such as this idea.....
mapguy 11/01/19 05:07pm Technology Corner
RE: Where to jack

Need to be real careful jacking directly on the axle tube. It can dent/deform fairly easily from the point load. I use a piece steel angle to protect the axle tube if doing a single tire or one side of trailer when jacking.
mapguy 11/01/19 12:49pm Toy Haulers
RE: Radiator performance? Life expectancy?

STAY WITH DEXCOOL -don't create extra issues to deal with, changing can lead to other issues like sludge build up from incompatible coolants. You cannot get all the old dexcool out...… Replace the radiator if at all concerned with its integrity. Use OEM or OEM replacement like Modine from napa. I would check to see if the fan is coming on at the right temp. It is a thermal fan. These are known to stop working or "engaging" at the proper temp over time. Cleaning the radiator stack would be a good move, too!
mapguy 09/10/19 02:23pm Tech Issues
RE: Can 4 wheel steer make a comeback?

No experience with the GM Quad Steer pick up. Many hours of experience with 4wd/4wheel steer forklifts. It is amazing how maneuverable this type equipment is for it's typical size. To get full advantage of a 4 wheel steer involves very complex hydraulic system.
mapguy 09/06/19 08:07pm Tow Vehicles
RE: Please help me identify 5th wheel towing issue.

To check if trailer frame is parallel to ground. Find a flat level spot for truck/trailer. Measure main rails (not fifth wheel platform portion of frame) of frame aa far forward as possible to ground . Then measure main frame rails to ground, as far back as possible. If frame is in the proper position -both front and rear measurements will be nearly the same. Much more than an 1" higher front measurement compromises suspension travel of rear axle. Lack of suspension travel amplifies the normal push-pull of a fifth wheel hitch system.
mapguy 08/15/19 03:09pm Fifth-Wheels
RE: Please help me identify 5th wheel towing issue.

Classic signs of 2 potential issues. 1. trailer/hitch/truck set up has trailer nose high. Trailer frame should be parallel with ground (level ground for checking). Having the trailer nose high reduces rear axle travel. Nose doesn't have to be very high to affect suspension travel negatively on a leaf spring suspension. 2. Pin weight - typically good ride has pin weight at or above 20% of actual trailer weight. Mine rides best with ~23% pin. you don't need helper springs or such if the truck does not sag at the proper pin weight. Edit: Are your factory overload springs staying fully engaged while towing? if not the symptoms you describe will be present.
mapguy 08/14/19 02:18pm Fifth-Wheels
RE: Duramax Turbo

these trucks can have problems with the turbo vanes sticking. It can be remedied with labor/cleaning but most shops won't do this type work. Typical shop will want to r&r the turbo as an assembly.
mapguy 08/06/19 05:02pm Tow Vehicles
RE: Replacing Tires on my GMC

5 tire rotation doesn't get you any more miles per tire or miles per dollar unless you're literally banking on the value of that cheap factory spare tire. It does do a good job of complicating tire rotations though. The one upside is if you have a 1 wheel peel vehicle and can't keep from wearing the right rear tire more than the other rear tire. Then a 5 tire technically makes a bit more sense and cents. Not using the cheap spare. Sold it with the wheel. Have a matching wheel and tire. So what's the attraction or advantage to a 5 tire rotation, save for maybe on a Jeep with expensive oversize spare tire sitting in the sun getting cooked? The motivation for having a matched spare is travel to very remote locations to camp and ride my dirt bike. Having a 5 tire rotation ensures that I have a serviceable tire to use if needed. I have seen many people with spare tire issues, tow vehicle or trailer, over the years in very remote locations. Many places I go have 30+ miles of washboard road to travel. Most of these places have no phone service either unless you have a sat phone. A rotted cheap spare is not going to get you back home in a reliable manner.
mapguy 07/06/19 03:10pm Tow Vehicles
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