Archived no boost

[Ron Bissett]

just tried to use my 99 3500 after it sat for years do to health problems that seam to be under control now ,thats normal for a guy pushing 80 . The truck will start and will run slow no boost shown on guage . could be some thing or any thing as I have forgoten most all i knew . I will read all the old issues or the TDR Ihave saved . But would welcome some insight If possible. Ron In Louisville KY

 

[B.G. Smith]

First thing I would do is check and make sure the turbo is free to turn. If that is ok then you need to check the boots on the outlet of the turbo to the intercooler and out the other side to the intake. Is it possible that some varmint has made a nest in the air cleaner or the inlet to it? Good luck, bg

 

[JR]

Does your truck act like its not getting any boost or are you going by what the gauge is reading? If its just by the gauge, you may check the tubing that feeds the gauge, something could have chewed through it while sitting. If the truck is not running right and you think it truly is getting no boost, I would pull the lid off the air filter housingand check for restrictions. Ive seen critters get in through the fender wells and make a cozy little nest in the air intake before. Let us know what you find!



Edit: Keep in mind your gauge will show little to no boost while idling, once you put the engine under load it should climb from there if working properly.

 

[Ron Bissett]

check it out with guage and the tack . only get to 1400rpm and 0 on the boost guage . whent to Cummins and they said map sensor is a Dodge item along with the AIT . Ron in Louisville Ky thanks all for your replys .

 

[B.G. Smith]

Before you spend money on those sensors check for codes. I believe on the 99 you can turn the ign on, off, on, off then on and leave on and it will flash the codes if any on the dash. bg

 

[JR]

Ron, its possible it could be a bad map sensor but not likely, they very rarely go bad. If youve checked all of your intake piping for pluggage and your turbo appears free, you could also check for codes if you have access to a scanner tool. It would be worth while to have them read that way your not wasting money guessing at a part. If you can get them read and report back your findings Im sure someone will be able to give you some good advice.



Sorry B. G. I must have been typing this out as you posted.

Im afraid Ron will have to find a scanner tool to have his codes read Im almost positive the 99 is the same way as my 98. 5 it will not show the codes with the key trick.

 

[DavidC]

Before you spend money on those sensors check for codes. I believe on the 99 you can turn the ign on, off, on, off then on and leave on and it will flash the codes if any on the dash. bg

That does not work on 99. You will need a scanner to check for codes.

Dave

 

[Ron Bissett]

a scaner is some thing I could use how where and cost name brand, Ill get one . Ron in Louisville Ky Thanks all for help.

 

[B.G. Smith]

Sorry B. G. I must have been typing this out as you posted.

Im afraid Ron will have to find a scanner tool to have his codes read Im almost positive the 99 is the same way as my 98. 5 it will not show the codes with the key trick. [/QUOTE]



Not a problem diesel4life. I had a 99 but couldn't remember if it would or would not read the codes. Ron, if there is an auto parts place near you they might come to your place and read the codes, they do it for free at the stores around here. bg

 

[JR]

If your looking to buy a scanner, Scan Gauge II is a pretty good unit. It reads codes as well as monitors engine functions like coolant temp, rpm, battery voltage, mpg, gallons of fuel per hour bieng consumed, and many others as well. If you like you can check out their website to see if it is something you would like just type in Scan Gauge in your search and you should find it. Autozone sells them for around $160 I think. Or if you would just rather have your codes read for now most auto parts stores will do it for free like B. G. said.

 

[DavidC]

a scaner is some thing I could use how where and cost name brand, Ill get one . Ron in Louisville Ky Thanks all for help.

Don't know which hand held scanner would be best. I use this with my laptop
http://obd-2.com/

Dave

 

[Ron Bissett]

Thanks all of you I will see about a hand held scaner in the morning at auto zone or one of the other stores here in Louisville ky Thanks again All.

 

[Bob4x4]

The map sensor often fails with out setting a code due to how it is monitored. If the truck is sluggish till about 2krpm then lights swap the map sensor. If the check engine light is not on don't expect to find an active code

 

[HHhuntitall]

Anyone thought to ask Mr. Bisset if he's changed the fuel filter after sitting all this time and verify the fuel lift pump is running? A stock style lift pump after sitting that long could easily sieze and be non-operational..... A scan reader would read any codes, but if there aren't any, then I'd start first with a visual inspection of hard mechanical parts, such as air filter, intercooler boots, fuel lines... . perhaps even blockage in the exhaust after sitting that long. A bird nest in the muffler would prevent the turbo from spooling up, and may not burn out being far enough back in the exhaust. With a habit of resurrecting old Dodges, equipment, and farm tractors, I've seen quite a few scenarios that you would never believe.....

 

[JR]

We can only go by what info has offered so far... Ron was hinting at replacing the map and I merely suggested verifying any codes before swapping out parts. And yes it was mentioned above to check for blockage in the intake piping due to critters moving in... .

 

[HHhuntitall]

Sorry, that did sound condescending and sarcastic..... I didn't mean to, and apologize. I come here to learn and help, too, and I forget there is more than one way to do something correctly. Yesterday, I was frustrated with other people's lack of common sense here in my world, and it came out verbally in my message here on TDR. You guys here on TDR have helped me out a great deal, and I thank you for that. I hope I can contribute to TDR in a positive way, myself, someday. Hopefully give back in a way, if that makes any sense... ... Sorry I was rude!!



And certainly check for codes. That may very well indicate exactly where the problem is. And then, it might not... ..... I don't exactly love electronic controlled engines... ... Anyone know where I put my wire cutters?

 

[JR]

No worries Mr HH. Were all here for the same reason, either to help or be helped (hopefully) before we resort to paying someone else to work on our rigs. I know Ive certainly gotten lots of good advice in the short time Ive been here and I try to return the favor when I can. You could very well be right it could be a fuel related issue I think Ron is still in the preliminary stages of finding his problem and many times (not always) a cel will give you an idea of whats going on, especially when trying to diagnose something hundreds of miles away .

Heres to hoping Mr Bisset gets his problem resolved promptly

 

[Ron Bissett]

Well I whent to auto zone to day and bought a hand held scaner Its a Actron cp125 now I have to read how to use it ,tried to use the CD that came with it but Error came up four times ,I gave up on that and will call the tole free number on the CD In the morning . cost 56. $ I should have gotten one years ago. I will let you all know how it turns out. Ron in Louisville. P. S I can not hear the lift pump, deff ,Ill see if my wife could listen for me. (recoup) broken knee cap. And its cold outside now. Thats part deff not total.

 

[Ron Bissett]

Well I whent to auto zone to day and bought a hand held scaner Its a Actron cp125 now I have to read how to use it ,tried to use the CD that came with it but Error came up four times ,I gave up on that and will call the tole free number on the CD In the morning . cost 56. $ I should have gotten one years ago. I will let you all know how it turns out. Ron in Louisville. P. S I can not hear the lift pump, def ,Ill see if my wife could listen for me. (recoup) broken knee cap. And its cold outside now. that is part deff.

 

[JR]

Good deal Ron. Make sure when your listening for your lift pump you bump the key for a second. Just turning the key forward will not activate it. Just bump the starter for a second (not enough to start the truck) and you should be able to hear it run for several seconds after.
Another thing I was thinking earlier, if the truck was sitting for a few years, how old is the fuel in the tank? Depending on how old it is, that could be giving you some problems as well.