Intake manifold off with pics of intake valves with deposits.

gone_fishing · February 6, 2015

How did you go about spraying that into the engine? What hose did you use?

I have a Volant CAI that has a nipple near the the throttle body that is for the valve cover breather hose. I removed this hose and sprayed the product into the intake through this nipple.

fondupot · February 6, 2015

I have a Volant CAI that has a nipple near the the throttle body that is for the valve cover breather hose. I removed this hose and sprayed the product into the intake through this nipple.

Nice the stock intake has those as well. So you basically just sprayed it in while the engine was running? So it got sucked into the intake?

gone_fishing · February 6, 2015

Nice the stock intake has those as well. So you basically just sprayed it in while the engine was running? So it got sucked into the intake?

Yep. To raise the idle RPM's I put a piece of wood between the gas and the seat and adjusted the seat position to push down on the gas pedal. Once I got about 1500-2000 RPM's I removed the hose and sprayed the product in until the can was empty.

fondupot · February 6, 2015

Yep. To raise the idle RPM's I put a piece of wood between the gas and the seat and adjusted the seat position to push down on the gas pedal. Once I got about 1500-2000 RPM's I removed the hose and sprayed the product in until the can was empty.

Hahaha, ingenious! Did the truck seem better after?

EXSlider400 · February 6, 2015

Just remove the intake tube and start spraying slow...then go more until spraying wide open. The trucks computer will do the rest. Do same on vacuum line for upper intake. May trip a code but just use a scan tool.

And don't use the straw unless you want to fish it out your intake manifold.

gone_fishing · February 6, 2015

Hahaha, ingenious! Did the truck seem better after?

Really didn't seem to run any different after the cleaning (was running fine before anyways). I bought two cans of this stuff so I'll be doing it again soon. After that maybe every oil change I'll run another can through.

Just remove the intake tube and start spraying slow...then go more until spraying wide open. The trucks computer will do the rest. Do same on vacuum line for upper intake. May trip a code but just use a scan tool.

And don't use the straw unless you want to fish it out your intake manifold.

Just an FYI, this CRC product has the straw built in so it can't come off during application (they call it PermaStraw)

Stoddard · February 7, 2015

I don't know if I'd spray it between the throttle body and filter because there's very little vacuum there and it may puddle before the throttle body. The volant tube looks OK. Codes usually do set from either seeing the vacuum leak or introducing an extra fuel into the system.

SirManny · June 26, 2015

Does anyone have a link to where i can purchase both the catch can and clean side seperator? I want to make sure I purchase the correct part.

JC84 · June 27, 2015

It doesn't look as bad as the other DI from other manf. Try using the MCCC (mopar combustion chamber cleaner) or amsoil power foam it foams up and cleans everything fixed my wife's 13 terrain that is direct injection. Will be using it on my truck as soon as I get closer to a oil change. Still haven't decided which catch can I will be going with

wvsilverado07 · June 27, 2015

Maybe this is one of the reasons GM is doing away with the 100,000 mile warranty for 2016?

gone_fishing · June 27, 2015

Does anyone have a link to where i can purchase both the catch can and clean side seperator? I want to make sure I purchase the correct part.

On my truck I'm using products from RX performance. Looks like they offer a kit now that includes separator and catch can for $350: http://www.rxspeedworks.com/product/catch-can-kits/Under the "Kit Size" the Single Valve version is what I'm using (along with standard hose).

SirManny · June 29, 2015

And that kit does both sides? Looks like i will be ordering it in the near future. You mind posting pics of your install?

BlackZ71Silverado · June 29, 2015

As for your last question, you should probably research the Corvette since this motor was out for the Corvette before it was out for the trucks/suv's I believe. In that regard im somewhat comfortable that it was in production for a bit before being implemented on the Silverado/Sierra.

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There was never a Corvette that had any of these truck engines. Not sure where that came from but it's incorrect.

Sure, the Vette had a DI engine but not the same one used in the trucks. Trucks do not share an engine with any Corvette.

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robvas · June 29, 2015

There was never a Corvette that had any of these truck engines. Not sure where that came from but it's incorrect.

Sure, the Vette had a DI engine but not the same one used in the trucks. Trucks do not share an engine with any Corvette.

The LT1 in the C7 Corvette and the L86 (Ecotec3 6.2) available in the high-trim level trucks are the same engine. Only differences are the intake and exhaust manifold and of course tuning.