GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat - Evap cleaning (what spray do I use to clean)

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- - Evap cleaning (what spray do I use to clean) (https://www.gmforum.com/1987-1991-93/evap-cleaning-what-spray-do-i-use-clean-286470/)

Quote:

Originally Posted by Danthurs (Post 1410556)

Here's the stuff you want to use. http://www.mainsupplies.com/index.ph...roducts_id=218 I can't express it enough, don't spray caustic chemicals in your HVAC. Even if you spray it with water to the point where you no longer smell it, those chemicals are still there. I've seen people recommend this, and it's a very very bad idea. Use the right stuff for the job.

Looks like a good product. So you spray this into the HVAC box and it foams up. Now the dumb question...How do you get the foam out? I would assume flushing it with water and a hose?

Any time. If you need anything else just ask. Feel free to jump in on any of the pointless threads in the lounge.

Quote:

Originally Posted by 2001SCBONNE (Post 1410606)

Looks like a good product. So you spray this into the HVAC box and it foams up. Now the dumb question...How do you get the foam out? I would assume flushing it with water and a hose?

Either a hose or it breaks down on its own and runs off.

I'm going to jump in here because the info Mike speaks of was at one time in this Forum before I had control of it, and was repeated in a competing Bonneville Forum thread recently. And here's a pic familiar to some of us (you can surmise whom it may be)

https://www.gmforum.com/attachment.p...1&d=1261082113

PLEASE!. Do not use this product in the interior of your car, nor in components such as the Evap or Heater Core. which handle the air you breath into the cabin. It may well evaporate quickly enough for outside carb or brake cleaning. But never completely There are residues. Residues that cause cancer and respiratory ailments. And fabric and fibers in the cabin can "lock" these and release them slowly. There are products made and tested for core cleaning. The writer of that article used no research and little brain when he wrote/suggested it.

I would never spray anything but the right substance, and I used to have only one reason. Now I have two. My newest reason is that the old administration kept pestering people and banning everyone over some new mods that were thought up. They said their aim was to keep everything stock, but then they turned around and cleaned stuff with caustic chemicals that weren't right for the job. Way to go, guys. My original reason is very American: You can sue if you use it right but it doesn't work. If you use it wrong and you get hurt, then sue, you're simply a douchebag.

Wanted to add a bit more information to this thread. DO NOT USE a product for anything other then its intended use.

Quote:

This product contains Methanol and cannot be made non poisonous.
INHALATION: May be harmful or fatal if inhaled. Blood disorders: Symptoms include a general feeling of unhealthiness,
weakness and fatigue. Clotting disorders (increased blood clotting time): Symptoms can include bruising easily and
bleeding which takes a long period to stop. Gastorintestinal disturbance: Symptoms can include nausea, vomiting, and
diarrhea. Cardiac sensitization: Sudden heart stoppage due to a reflex effect on the nerves which control the heart. This
effect usually occurs only after inhalation of concentrated vapors such as intentional abusive sniffing of certain solvents
and propellants. Heart effects: Symptoms can include arrhythmia, heart attack, and death. Nervous systems effects:
Symptoms can include emotional changes, lack of coordination, delirium, tremors, sensory loss, and coma. Peripheral
neuropathy: symptoms can include tingling of extremities, incoordination, sensory losses, weakness, tremors, and
emotional changes. Chemical pneumonitis: Inhalation of liquid or vapors can result in symptoms of coughing, difficulty
breathing, wheezing, pneumonia, and coughing up blood. Respiratory system irritation: Symptoms can include coughing,
congestion, irritation of throat, tightness of chest, wheezing, and difficulty breathing. Lung damage: Symptoms can
include coughing, difficulty breathing, wheezing tightness in chest, congestion, and coughing up blood. Pulmonary edema:
Symptoms can include coughing, difficulty breathing, fluid in lungs, unconsciousness, and even death.

Quote:

Brake cleaners and carburetor cleaners
often contain more than ten percent Flisted
solvents such as methylene chloride
(dichloromethane), tetrachloroethylene,
toluene and/or methyl ethyl ketone. In
addition to health and safety concerns,
these chemicals, if managed improperly,
can pose a serious threat to our
environment.

This is just a few concerns related to the use of carb cleaner.

Is there a door on the inside of the car on heater housing that could be taken off to clean evap core

No, the EVAP core is in the engine compartment.

Thanks Sorry to bug everyone about our heater but when it is - 30 F and you need to wear mitts and touque while driving. gotta be better.

Quote:

Originally Posted by duncan (Post 1416315)

Thanks Sorry to bug everyone about our heater but when it is - 30 F and you need to wear mitts and touque while driving. gotta be better.

Not bugging at all! Let's keep working this until you get some heat in there. I'm imagining that even at -30F, as much heat as your car has possible, it still won't eliminate the need to wear gloves, hats, etc.