Messages

wayne, you sent me a copy for the 2000....
the 2001, was the first year for the engine and transmission computer to be encased in the same box...

scan tool? i have the otc, the same one as i have always had...  and it does have a data stream.

the cat, ummm the hollow cat?  the exhaust pipe has pressure.

i will have to post the codes... they are out in the shop, and i am relaxing as frank mows his lawn....

2001 dodge caravan, 3.3, 270k miles. Incoming day driver had no complaints, nite driver drove 12 miles and returned saying van was running like crap, quick drive test confirmed it seemed to be missing, and did not want to idle, check engine lamp on, battery lamp was on, idled real rough.

got it in the shop, it was throwing codes for oxygen sensor high, tps voltage low, tps voltage high and a 1748.

data  showed oxygen sensor 1 was stuck at 99%. tps ohmed out ok, and 1748 is an internal code for the computer.


pulled the plugs and the plugs are sooty black, and smell of raw gas.

replaced plugs and wires (they had 90 k on them), did a compression check  the high was 185lbs low was178lbs.  the van has had computer issues in the past so i swapped computers with a know good one, and no change.

put a fuel pressure guage on the van and it has 50lbs steady pressure, i wanted to look at the fuel so i pressed the fuel bleed valve on the guage, to bleed so fuel into a clear jar, and the van started running great, no misses, smooth, would accelerate, as long as i was bleeding the pressure off, as soon as i released the bleeder valve, it starts missing.

he stated in a earlier post that it vibrated while on jack stands....

how are the mounting bushings on the arms  holding the rear axle assy?

tht engine is a true work of art.

i was asking about the silica sand, because some folks are not aware of the dangers.

Often abrasive blasting with sands containing crystalline silica can cause serious or fatal respiratory disease.

The National Institute for Occupational Safety and Health studied 99 cases of silicosis from exposure to crystalline silica during sandblasting during the late 1990's. Of the 99 workers reported, 14 have died from the disease, and at the time of the study the remaining 85 were at risk of death from silicosis and its complications.
When workers inhale the crystalline silica used in abrasive blasting, the lung tissue reacts by developing fibrotic nodules and scarring around the trapped silica particles. This fibrotic condition of the lung is called silicosis. If the nodules grow too large, breathing becomes difficult and death may result. Silicosis victims are also at high risk of developing active tuberculosis.
The Silica sand used in abrasive blasting typically fractures into fine particles and becomes airborne. Inhalation of such silica appears to produce a more severe lung reaction than silica that is not freshly fractured. This factor may contribute to the development of acute and accelerated forms of silicosis among sandblasters.
Ventilation controls for reducing crystalline silica exposures are not used in most industries. Studies have found that even in short-term sandblasting operations (less than 2 ? hours of blasting during an 8-hour workday), the average concentration of crystalline silica was 764 micrograms per cubic meter (µg/m3), with an average silica content of 25.5%. This average dust concentration was twice the 1974 standard of the Occupational Safety and Health Administration (OSHA).

In a 1974 study of respiratory protection practices during abrasive blasting, the protection factors for supplied-air respirators with helmets ranged from 1.9 to 3,750. This wide range was attributed to the varied conditions of the equipment rather than to the superiority of any brand. Maintenance was universally poor or nonexistent, and the persons responsible for selecting respiratory protection for abrasive blasting were inadequately informed about the proper use and maintenance of such equipment. The higher protection factors were associated with high rates of helmet air flow, but these high flow rates increased noise levels as a result of air turbulence. The study also indicated that the air inlets were too noisy and that the blasters' helmets tended to fall from the wearers' shoulders when they stooped.

Prohibition of Silica in Abrasive Blasting

Because of the high risk for silicosis in sandblasters and the difficulty in controlling exposures, the use of crystalline silica for blast cleaning operations was prohibited in Great Britain in 1950 [Factories Act 1949] and in other European countries in 1966. In 1974, National Institute for Occupational Safety and Health recommended that silica sand (or other substances containing more than 1% free silica) be prohibited as abrasive blasting material and that less hazardous materials be used in blasting operations.

sorry for the long post, but lungs are needed to live.

nice,

what do you use  the silica sand for?

I got primer on my parts last night. It's feeling good to be closer to the end than the beginning.

it never ends..

I loaded the swap trailer yesterday for Columbus GG. I have waaaay too much cra... er, stuff.

Charlie

you know the difference between stuff and crap (or sh*t)?

ownership, i have stuff, you have crap...

Was that Y'all, or All Y'all ?

yup.

when all else fails...

google..


http://www.google.com/search?hl=en&source=hp&q=welding+sparks+and+epoxy+floors&aq=f&aqi=&aql=&oq=


at least until someone turns off their welder,  sits at their computer and turns it on.....

i did google... but i wanted real world experince which is why i come here, at least here you get straight unbiased answers from real people. ( that was a compliment to y'all) (including team smart members)

36 lookys, and no one has an answer... what i am curious about is the "embers" and hot sparks that fly when welding and cutting, what all do you do to protect the epoxy floor from being damaged?

thinking of doing the epoxy floor thing in the shop, but had a thought, i do occasionally weld (gas and mig), what do you have to do to protect the floor ? ... just a random thought. :?:

nothing car related, been digging trenchs for sprinkler lines... i hate digging

once you go black you never go back....  nice chest, and beverlys nice too...

try cranking the steering wheel hard, and then try turning the key.