Last post on Feb 19, 2010 at 10:25 AM
You are in the Chevrolet Silverado & GMC Sierra
What is this discussion about?
Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Silverado 2500, Truck
#15 of 24 Re: MAP SENOR adjustment to improve gas milage [stacks125]
Mar 07, 2009 (6:27 am)
Depending on how elaborate you want to make the HHO device, it can cost any where from $100.00 to $900.00. I found all the plans on-line (google for HHO) and then built it. Mine cost me $130.00. I used 2 seamless stainless steel pipes (2" and a 2 1/4" by 9" long) $80.00 plus a water filter from Tractor Supply $17.50 and made my own bubbler $10.00 and bits and pieces from AUTO ZONE +/- $15.00. I had an increase of power and a increase in gas mileage. I went from (21 gal tank) 290 - 320 miles and now 380 to +/- 400 miles if I drive like an old lady. If I want to spend a little more, I probably could improve that up to around 475 to 500 miles per 21 gal tank. AND yes thats 25 mpg. I went from 15 - 18 mpg to 18 - 21 mpg.
#16 of 24 Re: MAP SENOR adjustment to improve gas milage [mrmouse3]
Oct 04, 2009 (7:53 am)
Did you do anything with your MAP sensor or your O2 sensor? I am in the process of doing a HHO system.
#17 of 24 Hydrogen conversion
Dec 28, 2009 (3:14 am)
I'd like very basic info on converting a 07 gas Silverado crew cab to run on hydrogen. Are there any kits and their cost? Also what type of MPG it might give?
#18 of 24 Engine Stalling
Dec 30, 2009 (7:43 am)
I have a 2000 Silverado 4.8L and the engine runs fine, except when I go to pass a vehicle. Instead of kicking in to passing gear the truck spits and sputters to the point of almost stalling. Ocassionally it will do this if I jump in it and start it and take right off. If I sit and let it run a few minutes its fine except for passing. The truck has 235,000 miles and I changed the spark plugs and wires around 175,000, but havent had injectors cleaned in a while. I run a can of SeaFoam every oil change and it seemed to help when it first started but has progressively gotten worse. Any ideas on where to start looking for a solution.
#19 of 24 Re: Engine Stalling [kmarlar]
Dec 30, 2009 (7:45 am)
Could be a clogged cat as seafoam has been known to do that.
#20 of 24 Re: Engine Stalling [obyone]
Jan 03, 2010 (5:51 pm)
Is there any way to check the catalytic converter to see if it is clogged, without going to a dealer?
#21 of 24 Re: Engine Stalling [kmarlar]
Jan 03, 2010 (6:00 pm)
Catalytic converters are one of the greatest emission add-ons ever to be installed on vehicles. By cleaning up the pollutants left over from combustion, they reduce tailpipe emissions of hydrocarbons (HC) and carbon monoxide (CO) to extremely low levels, when everything is operating normally, that is. But sometimes things do not operate normally, and when that happens engine performance may suffer or the vehicle may fail an emissions test.
See the article listed below for a good start
Lets us know how you make out!
#22 of 24 03 1500 - 13.2 MPG: Can this improve?
Feb 09, 2010 (11:20 am)
I just bought a GMC 1500 6.0 2wd w/ 150k miles. It runs great but getting 13.2 mpg. Is this the norm and if if not, should I start with changing the coils with a plug change? I wasn't expecting this low of gas mileage. I'd like to put it on a computer but I'm not sure what's good out on the market. The dealship wasn't my first choice.
No check engine, no problems..just inquiring about mileage.
#23 of 24 Re: 03 1500 - 13.2 MPG: Can this improve? [opc167]
Feb 19, 2010 (10:27 am)
Yes I fear that is all the mileage you are going to get, even with K&N, and a tonneau cover, I'm averaging 18.2mpg(city20% and highway80%) (5.3 liter V8), it also has to do with your rear end gearing.. if you have the higher gear set or a towing lower gear set.
My guess is make as much air flow through the engine with as much ease, then due to you large V8, up the gearing of your rear, that will likely help. if you dont live in Colorado or in the mts in general ...
I bought the mass airflow sensor and have had no luck, just that there is too much oxygen in the mix.. and an engine light is now cycling on and off
see my post here General Intake / Exhaust Mods ... #862 of 864The Generation II FIPKŪ is K&N's & Granatelli MAF by ttaupier1, might be an option
#24 of 24 Re: 03 1500 - 13.2 MPG: Can this improve? [ttaupier1]
Feb 19, 2010 (10:25 am)
I'm in Macon Ga. Since my first reply, I've been thru 2 more tanks and still getting 13.2. I asked for it though. I wanted something that would pull. I got it!