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Hummer Forums - Enthusiast Forum for Hummer Owners (https://www.hummerforums.com/forum/)
-   Hummer H3 (https://www.hummerforums.com/forum/hummer-h3-17/)
-   -   Noticed another thread and was wondering about HummerZ special sauce for stumbling H3 (https://www.hummerforums.com/forum/hummer-h3-17/noticed-another-thread-wondering-about-hummerz-special-sauce-stumbling-h3-48822/)

Happy Hummer Mar 1, 2025 12:03 PM

Noticed another thread and was wondering about HummerZ special sauce for stumbling H3
 
Any who, HummerZ had shown in the ported throttle body thread about these products and his H3 running glass smooth. Hoping he'll give a tutorial on how he goes about achieving this. My H3 has been less than smoot the last few months. And yes I've cleaned all the usual suspects over the years and ran chemicals in gas and through engine lol. Just would like to pick up any other tricks or tips that might help.

https://cimg4.ibsrv.net/gimg/www.hum...d1cf294940.jpg

hummerz Mar 1, 2025 03:45 PM

https://cimg4.ibsrv.net/gimg/www.hum...3f9cfa4eb4.jpg

Happy Hummer Mar 2, 2025 08:50 AM

Where does the seafoam spray get used?

hummerz Mar 2, 2025 09:20 AM



hummerz Mar 2, 2025 01:53 PM

Walmart sent me a FREE can of Super Tech Motor Treatment to try. Comparable to Seafoam at a lower price. I will test it with my next induction.

https://cimg4.ibsrv.net/gimg/www.hum...36c03e46ae.jpg
https://cimg6.ibsrv.net/gimg/www.hum...c9a2236c84.jpg

H2-SUT Mar 2, 2025 05:17 PM

Wow, half the cost, Hopefully no half as good, I will be interested to see how well it does!

hummerz Mar 3, 2025 07:48 PM

Scanner=P0300 Engine Misfire Detected!:cool:

Back in '12 when I purchase my 3 it was throwing the P0300 ONLY when idling during warm up. I've corrected the PO neglect!
I let my 3 idle today outside @35°F ambient for an hour still idles Smooth NO CODE! :cool:

H2-SUT Mar 4, 2025 09:02 AM

Love the stuff
 
Seafoam has really treated me well through out the years. I now only buy it in the gallon container so I can control the concentration ratio better plus its much cheaper then buying the little bottles.

https://cimg5.ibsrv.net/gimg/www.hum...ff55546536.jpg

hummerz Mar 4, 2025 07:03 PM


Originally Posted by H2-SUT (Post 413938)
Seafoam has really treated me well through out the years. I now only buy it in the gallon container so I can control the concentration ratio better plus its much cheaper then buying the little bottles.

https://cimg5.ibsrv.net/gimg/www.hum...ff55546536.jpg

Not much cheaper> 8 PINT CANS=1 GALLON. Make sure to keep the can sealed airtight to prevent evaporation. :cool:
I use Seafoam for induction cleaning and only use 1- 16oz pint can when I perform the service.
I also add LUCAS in the tank, This is DEFINITELY BUY THE GALLON=>FOR HUGE SAVINGS!Lucas Oil 10013 Fuel Treatment Gallon


https://cimg9.ibsrv.net/gimg/www.hum...7907884f57.jpg
https://cimg0.ibsrv.net/gimg/www.hum...b9b7079961.jpg




Roger Volver Jun 30, 2025 10:47 AM


Originally Posted by hummerz (Post 413931)

Scanner=P0300 Engine Misfire Detected!:cool:

Back in '12 when I purchase my 3 it was throwing the P0300 ONLY when idling during warm up. I've corrected the PO neglect!
I let my 3 idle today outside @35°F ambient for an hour still idles Smooth NO CODE! :cool:

I have had the p0303 error for many years and replacing coils and spark plugs does not help. What did you do to make the error go away?


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