White smoke 4.2l v8 - Club Touareg Forums
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post #1 of 19 Old 3 Weeks Ago Thread Starter
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White smoke 4.2l v8

So guys I've been reading through the forum for awhile finally made a new account cause I'm at a bit of a loss.

So long story short I bought a 2004 Touareg 4.2l v8. When I bought it the valve covers were off and right side cams, chain, chain tensioner were removed apparently it had skipped a tooth original owner got in over his head and gave up. Well after 3 weeks of hell
(two bolts on water pump snapped off and cam shaft on pass side for oil dispenser stripped all by previous owner), well finally got water pump, timing chains and tensioners, timing belt and tensioner along with other pulleys all replaced. Started up and leaked coolant from pass rear of engine found a bad hose on larger coolant pipe below head replaced and did the egr gaskets as well since I had to remove it anyway.

Now we are three weeks into this car and there is still a leak from same area and the car has thick white smoke from bother exhaust pipes the heater won't blow hot if that makes a difference I've been told that it could be head gasket I've been told injectors been told cracked head. Well it runs pretty good there's a slight tick doesn't over heat but plumes of smoke.

Any suggestions? Or do I drive it off a cliff and cut my losses

Also add that everything on this car works air suspension everything with no warning lights and 174k miles (even thought the owner lied and told me 130k)

Thanks guys

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post #2 of 19 Old 3 Weeks Ago
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No hot air has to be a different problem than the white smoke. I'd bet on an actuator damaged while replacing a hose. It might even just be something loose. The white smoke sounds like a head gasket.
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post #3 of 19 Old 3 Weeks Ago
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post #4 of 19 Old 3 Weeks Ago
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https://allusedparts.com/volkswagen/...&dir=a#results

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post #5 of 19 Old 3 Weeks Ago Thread Starter
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Quote:
Originally Posted by MikeyWasHere View Post
No hot air has to be a different problem than the white smoke. I'd bet on an actuator damaged while replacing a hose. It might even just be something loose. The white smoke sounds like a head gasket.
I normally would agree but my spark plugs are clean the coolant isn't miss colored and the oil isn't milky or miss colored

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White smoke has to be water in the exhaust. Look for other avenues for it to get in there.

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post #7 of 19 Old 3 Weeks Ago
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Hook up a pressure tester on the cooling system and find the leak.

Do a compression / leak down test on each cylinder to see if you have a head gasket leak or crack.

Or just buy a used motor

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post #8 of 19 Old 3 Weeks Ago
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Buy a large boat... use the Touareg for an Anchor!

But seriously, you're burning coolant..... if it runs good, run it for a longer period of time, and you should see the coolant level drop, and the engine start to overheat (monitor it and shut it down before you pop it) .....
If you're plugs, oil and remaining coolant all look good, it can't be a HG or a cracked head\block...... start looking at EGR and other potential points\paths where the coolant might get into the exhaust.......

The fact that you don't have heat tells me that the coolant isn't circulating properly, and not reaching your heater core........
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post #9 of 19 Old 3 Weeks Ago Thread Starter
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Quote:
Originally Posted by TurboABA View Post
Buy a large boat... use the Touareg for an Anchor!

But seriously, you're burning coolant..... if it runs good, run it for a longer period of time, and you should see the coolant level drop, and the engine start to overheat (monitor it and shut it down before you pop it) .....
If you're plugs, oil and remaining coolant all look good, it can't be a HG or a cracked head\block...... start looking at EGR and other potential points\paths where the coolant might get into the exhaust.......

The fact that you don't have heat tells me that the coolant isn't circulating properly, and not reaching your heater core........



I ran it for about 25 min and checked them so I guess it's onto going down the list anyone know of a good coolant system diagram for this motor?

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post #10 of 19 Old 3 Weeks Ago
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With a blown head gasket, the plug(s) will be SUPER clean for the cylinder(s) where the coolant is entering. It's like water injection. Usually the white smoke only lasts a few seconds until it burns off. Constant white smoke points to a large gasket leak or cracked head. No heat may be enough coolant leaking to quickly cause air pocket.

Pressure test cooling system to verify.

If enough coolant gets into a cylinder, you can blow the engine at start up...water doesn't compress...called hydrolock.
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