New answers tagged fuel-system
you might need to check the relays in the fuse box, without forgetting the fuel regulator.
I essentially gave up and took it to a mechanic. The fuel pump was dead. What happened was my fuel pump was dying. It was providing around 5psi of pressure when it needed around 9-14psi. Overall, I had the mechanic replace the pump & regulator and the truck is working normally again. I had some codes on my computer for the EGR system and the MAP sensor. ...
This is a typical problem for when your glow plugs are wearing out, or not heating as they should. If they are not heating properly, but are still heating, you'll not get an error code. Getting them replaced would be the first thing I'd look at doing.
My first guess on this would be Glow/Heater plugs or the circuit wiring or relay, but since you say it's not showing on diagnostic checks it would lead me to believe it's a mechanical failure. Have you had a compression test done? That would be my next move.
I think that something blocking fuel lines, maybe hose bend. After some time under pressure of fuel pump it unblocks and fuel rail pressure returns to normal. Not sure that ECU has fuel pressure sensor, so it is just a theory but it worth to check fuel pressure first
What if bobber (fuel level sensor) in your fuel tank is squeezing fuel hose when tank is about 100% full? In this case you get fuel pressure drop and lean fuel mixture (that causing missfire). Go to service and aske them to open you tank, remove fuel pump system and investigate it.
I'd suggest you're right in your diagnosis and, yes, it should be safe to drive on a minimal basis. The only issue you might see is a check engine light due to the tank not being sealed completely. Also, your fuel will absorb more water than it would otherwise, though this will still be only a small amount. Be careful while fueling and get the repair done as ...
I think this could definitely be cause by bad fuel. It would probably do good for you to put a bottle or two of gas treatment into your tank. Put it in and run the fuel down to near empty (not all the way, but run it down to about an 1/8th tank), then fill the tank full with gas from a known good source. You may ask how do you figure out which gas is good? ...
Top 50 recent answers are included