After years of reading this forum and occasionally providing answers for folks, I find that I need some help. My 2005 GT with 90K miles (I bought it new but I drive a lot) refused to run yesterday completely out of the blue. Got home from work the night before, parked in my garage as always, and next morning it started and ran rough for about 20 seconds, then died. Since then, it will restart, run extremely roughly for a few seconds, then die. No matter what I do with the throttle I can't get it to stay running more than 5 seconds, but it will immediately restart and do the same thing, up to the point that it gets flooded or the battery goes dead.
It has 90K miles, a JLT cold air kit and Doug Bama tune that I installed a couple years ago, and there is about 4 gallons of Chevron gas in the tank. I haven't yet changed the plugs, but up to this point it was still running perfectly so I doubt that enough of the plugs fouled simultaneously to cause this problem. I changed the fuel filter, cleaned the throttle body, examined the MAF for oil buildup from my cone type air filter, and everything appears fine, yet it won't run more than a few seconds. My SCT tuner shows no codes, and I can hear the fuel pump pressurize the fuel system when I turn the key on.
At this point I don't know what to do. Since it will repeatedly start, it has spark and it has fuel. To my thinking, it couldn't plug enough injectors nor foul enough plugs to make it stop running, considering that it was running perfectly up to that point. I would like to check the fuel pump output, but I don't know how to do it on the returnless fuel system.
The only other clue I can offer is that before yesterday, there were perhaps 5 times since new that it has started and run roughly for 10 seconds or so, and then it clears itself out and runs fine. The last time it did this was only a few days ago, but again it ran roughly for maybe 10 seconds and then it was fine. Also, my car, like many other 3V's, has always burned very blue smoke if it was started, left to run for only 30 seconds or so, shut back off, and then let sit for an hour or more. After sitting like this, then the next start will always be very smokey with blue smoke.
I appreciate any ideas or diagnostic assistance you can give. I'm an okay mechanic but not a very good diagnostician, so I need your ideas, especially any Ford techs out there.
Thanks a lot in advance
Owner1
It has 90K miles, a JLT cold air kit and Doug Bama tune that I installed a couple years ago, and there is about 4 gallons of Chevron gas in the tank. I haven't yet changed the plugs, but up to this point it was still running perfectly so I doubt that enough of the plugs fouled simultaneously to cause this problem. I changed the fuel filter, cleaned the throttle body, examined the MAF for oil buildup from my cone type air filter, and everything appears fine, yet it won't run more than a few seconds. My SCT tuner shows no codes, and I can hear the fuel pump pressurize the fuel system when I turn the key on.
At this point I don't know what to do. Since it will repeatedly start, it has spark and it has fuel. To my thinking, it couldn't plug enough injectors nor foul enough plugs to make it stop running, considering that it was running perfectly up to that point. I would like to check the fuel pump output, but I don't know how to do it on the returnless fuel system.
The only other clue I can offer is that before yesterday, there were perhaps 5 times since new that it has started and run roughly for 10 seconds or so, and then it clears itself out and runs fine. The last time it did this was only a few days ago, but again it ran roughly for maybe 10 seconds and then it was fine. Also, my car, like many other 3V's, has always burned very blue smoke if it was started, left to run for only 30 seconds or so, shut back off, and then let sit for an hour or more. After sitting like this, then the next start will always be very smokey with blue smoke.
I appreciate any ideas or diagnostic assistance you can give. I'm an okay mechanic but not a very good diagnostician, so I need your ideas, especially any Ford techs out there.
Thanks a lot in advance
Owner1