Gas in my oil
- Thread starter DRUNK411
- Start date
CarbonFiber AWD
Donating Member
Re: Gas in my oil
Have you checked to see if there is any liquid gas in the vac signal hose for the FPR ? If there is....bad FPR diaphram.
Have you checked to see if there is any liquid gas in the vac signal hose for the FPR ? If there is....bad FPR diaphram.
fivetodrive
CRISPY
Re: Gas in my oil
What chip do you have? It shows that you have 42lb injectors. There is no 42lb chip that I can think of. There was a 40lb atr chip... But not a 42... Plus with the fuel pressure dropping immediately there is an injector stuck open or your fuel pressure regulator is bad or your new fuel pump has a bad check valve...
What chip do you have? It shows that you have 42lb injectors. There is no 42lb chip that I can think of. There was a 40lb atr chip... But not a 42... Plus with the fuel pressure dropping immediately there is an injector stuck open or your fuel pressure regulator is bad or your new fuel pump has a bad check valve...
Flyin Ryan
hated cuz he drives fords
SCWolverine
New member
Re: Gas in my oil
I believe the 42# injectors are the "unknown" ones he's been tempted to swap in (Don looked them up). The other 42# reference was his static FP.
That being said, clean/test the injectors, or swap for other known-good stockers. Find out for sure it's an injector as cheaply as possible, from there jump on some 50#s or whatever floats your boat (with the supporting mods), but I'd be sure your existing problem is because of a bad injector FIRST. Fix>Mod
I believe the 42# injectors are the "unknown" ones he's been tempted to swap in (Don looked them up). The other 42# reference was his static FP.
That being said, clean/test the injectors, or swap for other known-good stockers. Find out for sure it's an injector as cheaply as possible, from there jump on some 50#s or whatever floats your boat (with the supporting mods), but I'd be sure your existing problem is because of a bad injector FIRST. Fix>Mod
Re: Gas in my oil
"did you re-install the pulsator during the FP swap??"
I swapped the fuel pump for the whole kit that RPM sells and also a new sending unit because the line coming out of it twisted when taking it apart. What do you mean by the pulsator?
"What chip do you have? It shows that you have 42lb injectors. There is no 42lb chip that I can think of. There was a 40lb atr chip... But not a 42... Plus with the fuel pressure dropping immediately there is an injector stuck open or your fuel pressure regulator is bad or your new fuel pump has a bad check valve..."
I do not have the injectors installed yet, I bought a rail for my other motor that has these injectors in it along with a AFPR that I was going to swap into this truck. I was just trying to get an idea if this was a good idea or not.
"Have you checked to see if there is any liquid gas in the vac signal hose for the FPR ? If there is....bad FPR diaphram."
Yes I pulled the line from the top of the FPR and there was no gas in it and nothing came out of the top of the FPR with the line off and the truck running.
"Does the vehicle idle smooth? Other than the hesitation are there other driveablity issues? if it doesnt run smooth then my guess would also be leaning toward injectors. If you can disconnect the vac line to the fpr and plug the fuel rail suppy with a special plug used when cleaning the injectors and pressureize the rail via shrader valve it should hold pressure. Dont pressurize it too much though. If it doesnt hold pressure then you KNOW its the injectors.... well it could be the fpr too unless you plugged the return line also. Just a thought.
Respectfully,
Tom "
The truck runs and idles pretty smooth it sometimes bounces up and down but not to bad but the FPR is new on the truck and I tested to see if the diaphram was good on it and it seems to be.
"With FP answered... per Mike (above) sounds like the check valve is toast (rail losing pressure really fast), Id get that fixed first (Shouldn't be related, but...). From there, if it were me I'd pull the injectors for clean/check (piece of mind, plus proof they're good when you upgrade (and sell)). AFPR, & WBO2 would be the next things I threw at it."
Where is this check valve that is being talked about and how do I replace it?
Also for my next question, why would I take and clean these injectors and then go and replace them later when I can do it all in one shot and solve the problem that way? And should I not use a 42# injector is there no chip for it to be used with? Thanks again guys I am new to this and just trying to get her figured out. Thanks for being patient with me and not a mechanic but enjoying working on my truck.
"did you re-install the pulsator during the FP swap??"
I swapped the fuel pump for the whole kit that RPM sells and also a new sending unit because the line coming out of it twisted when taking it apart. What do you mean by the pulsator?
"What chip do you have? It shows that you have 42lb injectors. There is no 42lb chip that I can think of. There was a 40lb atr chip... But not a 42... Plus with the fuel pressure dropping immediately there is an injector stuck open or your fuel pressure regulator is bad or your new fuel pump has a bad check valve..."
I do not have the injectors installed yet, I bought a rail for my other motor that has these injectors in it along with a AFPR that I was going to swap into this truck. I was just trying to get an idea if this was a good idea or not.
"Have you checked to see if there is any liquid gas in the vac signal hose for the FPR ? If there is....bad FPR diaphram."
Yes I pulled the line from the top of the FPR and there was no gas in it and nothing came out of the top of the FPR with the line off and the truck running.
"Does the vehicle idle smooth? Other than the hesitation are there other driveablity issues? if it doesnt run smooth then my guess would also be leaning toward injectors. If you can disconnect the vac line to the fpr and plug the fuel rail suppy with a special plug used when cleaning the injectors and pressureize the rail via shrader valve it should hold pressure. Dont pressurize it too much though. If it doesnt hold pressure then you KNOW its the injectors.... well it could be the fpr too unless you plugged the return line also. Just a thought.
Respectfully,
Tom "
The truck runs and idles pretty smooth it sometimes bounces up and down but not to bad but the FPR is new on the truck and I tested to see if the diaphram was good on it and it seems to be.
"With FP answered... per Mike (above) sounds like the check valve is toast (rail losing pressure really fast), Id get that fixed first (Shouldn't be related, but...). From there, if it were me I'd pull the injectors for clean/check (piece of mind, plus proof they're good when you upgrade (and sell)). AFPR, & WBO2 would be the next things I threw at it."
Where is this check valve that is being talked about and how do I replace it?
Also for my next question, why would I take and clean these injectors and then go and replace them later when I can do it all in one shot and solve the problem that way? And should I not use a 42# injector is there no chip for it to be used with? Thanks again guys I am new to this and just trying to get her figured out. Thanks for being patient with me and not a mechanic but enjoying working on my truck.
ffmeltdown
Donating Member
SY2932
Administrator
Re: Gas in my oil
The pulsator is connected to the outlet of the fuel pump, it would be connected above the fuel pump if you still had it. The short fuel hose that is included in fuel pump kits is used in place of where the pulsator would be. This is what it looks like next to a fuel pump:
As you can see, it's pretty large and would be hard to miss. As far as replacing the check valve on the fuel pump, the way that you fix it is to buy a new fuel pump... You can't buy a check valve and even if you could, IIRC you couldn't replace it unless you COMPLETELY disassembled the fuel pump. Usually a speck of dirt gets sucked in does it in. My fuel pump is eight years old so, I can't complain. Got a new one from Ron Gregory a few months ago to replace it.
The pulsator is connected to the outlet of the fuel pump, it would be connected above the fuel pump if you still had it. The short fuel hose that is included in fuel pump kits is used in place of where the pulsator would be. This is what it looks like next to a fuel pump:
As you can see, it's pretty large and would be hard to miss. As far as replacing the check valve on the fuel pump, the way that you fix it is to buy a new fuel pump... You can't buy a check valve and even if you could, IIRC you couldn't replace it unless you COMPLETELY disassembled the fuel pump. Usually a speck of dirt gets sucked in does it in. My fuel pump is eight years old so, I can't complain. Got a new one from Ron Gregory a few months ago to replace it.
Re: Gas in my oil
Sy2932- I am going to have to say it is not the check valve as the pump is only about 3 weeks old and has only about 40 miles on it tops. I just replaced it and sending unit when I did my fuel tank and with a walbro from RPM.
DaveP- Thanks for the suggestion, I will try the lines tomorrow and if that is not the issue I will start breaking down the upper intake and fuel rail. Again guys I really appreciate all the help and patients!
Sy2932- I am going to have to say it is not the check valve as the pump is only about 3 weeks old and has only about 40 miles on it tops. I just replaced it and sending unit when I did my fuel tank and with a walbro from RPM.
DaveP- Thanks for the suggestion, I will try the lines tomorrow and if that is not the issue I will start breaking down the upper intake and fuel rail. Again guys I really appreciate all the help and patients!
gkrcr882
SyTyless......for now!
Re: Gas in my oil
X2, just because it's new, it doesn't mean its good. Go with what DaveP said, he has a wealth of knowledge.
X2, just because it's new, it doesn't mean its good. Go with what DaveP said, he has a wealth of knowledge.
SY2932
Administrator
Re: Gas in my oil
NO DOUBT! I wish that I had a dime for every time someone replaced a part with a new one, had a problem and discounted it as being a problem simply because it was "new". I guess that I am the only person who has had things "bad" right out of the box...
NO DOUBT! I wish that I had a dime for every time someone replaced a part with a new one, had a problem and discounted it as being a problem simply because it was "new". I guess that I am the only person who has had things "bad" right out of the box...
SY2932
Administrator
Re: Gas in my oil
Yeah me:
"Applying 12 volts to fuel pump test connector to troubleshoot fuel pump or set fuel pressure with vacuum line still connected and motor off (note fuse for safety)."
Yeah me:
"Applying 12 volts to fuel pump test connector to troubleshoot fuel pump or set fuel pressure with vacuum line still connected and motor off (note fuse for safety)."
ffmeltdown
Donating Member
Re: Gas in my oil
Figured out the problem yet?
Figured out the problem yet?
Re: Gas in my oil
Sorry for the non update, the problem was the #2 injector was stuck open and as soon as I turned on the key it just dumped raw gas into the motor. I put 6 used but very low mile stock injectors on the truck and since have no smell of gas in my oil and also she holds pressure when the key is on. Also the smoking issue is gone and so is the hesitation problem. So thanks to everyone who helped me through this, it is greatly appreciated!
Sorry for the non update, the problem was the #2 injector was stuck open and as soon as I turned on the key it just dumped raw gas into the motor. I put 6 used but very low mile stock injectors on the truck and since have no smell of gas in my oil and also she holds pressure when the key is on. Also the smoking issue is gone and so is the hesitation problem. So thanks to everyone who helped me through this, it is greatly appreciated!