DaveBen
SDD Senior Member
If the Scan tool will not connect, I would think about the PCM (Program Control Module) or the computer as it is known.
Dave
Dave
Gasoline in fuel!!! ...WTF!?!?!
- Thread starter Eubee
- Start date
no-red 6 0
Senioritis
Jess-
You have not 100% clarified that it was gasoline and just not a bad batch of diesel. Gasoline is pretty much obvious, is that what is in your tank, done further testing on it??? Could it not be just a sad batch of diesel? Perhaps stick some type of 'stick' into your tank and upon pulling it out check the smell - gas v diesel is pretty simple. Other than that i don't know what you could do. The scanner won't tell you that but it would tell you of other problems - but if it won't connect to the ODB port?!?! - bent pins?!?!
The ext. cab - is that 30 gallons - perhaps dropping the tank and draining and refilling w/ diesel would be one place to start...If it is not gas, at least you would be putting in 'fresh' diesel from another location...
You have not 100% clarified that it was gasoline and just not a bad batch of diesel. Gasoline is pretty much obvious, is that what is in your tank, done further testing on it??? Could it not be just a sad batch of diesel? Perhaps stick some type of 'stick' into your tank and upon pulling it out check the smell - gas v diesel is pretty simple. Other than that i don't know what you could do. The scanner won't tell you that but it would tell you of other problems - but if it won't connect to the ODB port?!?! - bent pins?!?!
The ext. cab - is that 30 gallons - perhaps dropping the tank and draining and refilling w/ diesel would be one place to start...If it is not gas, at least you would be putting in 'fresh' diesel from another location...
Eubee
Full Access Member
My reciept shows I took on 17.9 gallons durring that fuel-up, meaning there was still about 11.1 gallons of diesel in the tank (about 62% of 'potential' gasoline to 38% diesel)
I took four samples of fuels in four separate glass jars.
Sample #1 was known straight 87 octane gasoline
Sample #2 was known straight on-road diesel (from a known good source)
Sample #3 was a sample from the drain on my truck's fuel/water separator
Sample #4 was a near 50/50 mix of the known gasoline and known diesel
Visual:
Sample #3 was closest in color to sample #2.
Sample #3 was far from sample #1 in color.
Sample #3 had more of a 'yellow' tint to it than sample #2.
Sample #4 was between sample #1 and sample #3 in color.
When all four samples were swirled around inside their jars with lids on (think: tornado in a soda pop bottle), sample #2 was the only one to still have bubbles on the surface after one minute of no movement
Smell:
Sample #1 - obvious
Sample #2 - obvious
Sample #3 - smelled a lot like diesel, but to me had a faint smell of gasoline
Sample #4 - smelled prominently like gasoline.
I have been searching for some kind of test that would prove if it were mixed or not, but I have been unsucessful as of yet.
They all look straight to me. If I remember correctly, it said something along the lines of 'can not connect to controller ...'.
Eubee
Full Access Member
dbl post
Last edited:
Jess.. An API* [Flash Test] will tell you what you need to know.
In a past life, I usta be in the Fuel Bidness... IIRC, #2 Diesel Fuel is typically assigned a Flash Point of 100, to 160 degrees Fahrenheit... from a known sample.. when heated from ambient temperatures, the vapors should NOT flash at anything >less than< 100*. (As a reference ?..We would not accept #2 Diesel deliveries with an API flash of more than.... 150*, or less than...130* ??)
If you have a Fuel Terminal, or a Distributor near-by (?) they may run an API "Flash" of your samples for ya..
* API: American Petroleum Institute ( has a scale of standards & specs for fuel products)
Joe
In a past life, I usta be in the Fuel Bidness... IIRC, #2 Diesel Fuel is typically assigned a Flash Point of 100, to 160 degrees Fahrenheit... from a known sample.. when heated from ambient temperatures, the vapors should NOT flash at anything >less than< 100*. (As a reference ?..We would not accept #2 Diesel deliveries with an API flash of more than.... 150*, or less than...130* ??)
If you have a Fuel Terminal, or a Distributor near-by (?) they may run an API "Flash" of your samples for ya..
* API: American Petroleum Institute ( has a scale of standards & specs for fuel products)
Joe
Last edited:
Eubee
Full Access Member
I am by no means an electrical guru. Is there any way to test the PCM and tell if there is anything wrong with it?
Thanks again
Thanks again
DaveBen
SDD Senior Member
The only way is to plug in a scanner. Or replace it with one that is for your truck.
Dave
Dave
Eubee
Full Access Member
I did not physically go there, but I did call and talk to the owner (or that is who he claimed to be). Whoever it actually was claimed that there were no other complaints yet. He took my contact info and the details of the fill-up and said he would let me know if anymore people start complaining. I do not know this 'owner', so I am taking all of what he said with a grain of salt.