it has an "exhaust manifold heat control valve"- exactly what does this valve do? what is its purpose and/or function? the owner hasnt run the truck in about a year, we got it started yesterday, but smoke started coming up from around this valve right away! haynes manual tells how to "service" this valve (spray it with a solvent) but says NOTHING else at all about it, ANYwhere in the book? btw, it does appear to work properly, too.
2007-04-24 00:49:27 · 5 answers · asked by Berkly M 4 in Cars & Transportation ➔ Car Makes ➔ Dodge
its not my truck, its my neighbors, since i am ALWAYS working on my car and/or my g/f's car, everybody in the building thinks i want to work on theirs, too!
2007-04-25 04:14:53 · update #1
this truck hasnt been run in about a year, he says, i got it fired up the other day without any trouble, only thing was smoke, looked like it was coming from underneath this heat control valve.
2007-04-25 04:18:02 · update #2
get a chevy.
2007-04-24 04:21:33 · answer #1 · answered by Anonymous · 1⤊ 3⤋
"A manifold heat control valve is located in the left exhaust manifold. The thermostatic controlled valve directs heated exhaust gases to the heat chamber in the intake manifold to beneath the carburetor to help vaporize the fuel mixture during the engine warmup period." Dakota service manual description.
If it has not been run in a long time, chances are it is oil that has accumulated over time. run it until it gets hot a few times, and see if the smoking stops.
The shaft on the valve may be worn and letting exhaust gas escape, and if it smokes, the engine is burning oil.
2007-04-24 13:36:24 · answer #2 · answered by eferrell01 7 · 1⤊ 0⤋
Sounds more like a leaky valve cover gasket or possibly cylinder head gasket. The heat control valve will not smoke on its own, there has to be something getting on it or the exhaust components on either side of it. Otherwise, I agree, get a Chevy.
2007-04-24 10:39:21 · answer #3 · answered by Anonymous · 1⤊ 0⤋
It is suppose to suck out the excess smoke and make it go down the trucks throat(its carb pulls it through the system and burns it along with the fuel. If you can, try to get a 2000 chevy truck and then you wont have to be getting greasy anymore.
2007-04-24 01:02:36 · answer #4 · answered by tommy 2 · 2⤊ 0⤋
i might think of two times approximately this purchase. vehicles that previous have a tendency to fee a lot on maintenance. Plus in some states the governement is attempting to get vechicles basically somewhat older than that of the line as a results of their bigger degree of pollution. in case you will get it besides, get a track up. Or better yet, while you're finding out to purchase from a dealership make confident they provide yoou one ahead of purchase.
2016-12-10 10:04:28 · answer #5 · answered by ? 4 · 0⤊ 0⤋