During all of these engine stalls, the fuel pressure never dropped off of 58psi. Even if you place the car in drive at idle without accessories on that is enough to drop the idle speed that much and it will stall. If I turn on the heater the A/C engages and it's not long that the engine stumbles and then stalls also. Also I have noticed that once the car is warmed up and I turn on the rear defrost/car seat warmers that is enough to cause the car to stumble and then actually stall. If the car idled at 750 or 800 RPM I am convinced that the car would not stall. I am convinced that if the throttle body had a hard stop screw for base idle all I would have to do is to give it a 1/4 turn and my problem would be fixed. I have noticed that it seems when the engine warms up to a point were the idle speed goes down to 700 RPM that's when trouble starts. Then it got up to 215F and it did another stumble and almost stalled again, but it didn't. I was monitoring the ECT and it wasn't until it got up to 200F that the engine stumbles once and almost stalled, but it didn't. During this time all accessories were turned off. I continued to monitor the fuel pressure while the engine warmed up to operating temp. I have also purchased a 3130e Innova scan tool to read codes and monitor live data.
2009 ford focus manual#
The only spec I could find in the shop manual was the 55psi idle speed. Also performed a Fuel Volume test with engine idling resulting in 24oz in 30 seconds while the fuel pressure dropped to 25psi. (spec is 55psi idle) Also performed a leak down test which resulted in a drop of 5psi after 20 minutes of KOEO. UPDATE: I gained access to an OTC 6550 Master Fuel Injection Kit. At this point I am not sure what my next plan is going to be! Thanks everyone for the help so far with this matter!
2009 ford focus install#
It's too bad an electronic throttle body was so expensive, otherwise I would install a new one and take my chances. The car stalled right after I turned around from the test drive. I did not do that after I cleaned the throttle body. including the throttle relearning procedure. I watched them both and then followed them both to a T. I also thru in another set of spark plugs, however that didn't fix it either. Yes, I did do the throttle body cleaning procedure and it didn't help.
cj1: Yes, if you are quick enough you can prevent a stall by pressing a little on the accelerator pedal.
2009 ford focus code#
I wish it would set a code so you could pick it up with the scan tool. The check engine light went out immediately after restarting the car both times. I held off taking it to the dealer thinking that it must have set a DTC, however it did not. The check engine light never comes on when it stalls, other than twice which is over 2 months ago. There is also no in line fuel filter only a so called lifetime filter which is serviced as part of the fuel pump module (inside tank). CatSkinner: You are correct there is no Schrader valve on the rail to hook up a gauge. Sorry for the slow response, I have been busy finishing a machining course. If you never had to stop the vehicle you would never know there is an issue. The Mass air flow sensor was substituted with a known good one with no change to the stalling problem. There were no DTC's stored in the memory and it passed all tests using the dealerships scan tools. I had it to the dealership when the check engine light finally came on a couple of times when it stalled. The car has been well maintained and I have replaced the plugs at 93,000 Km that were purchased from the local Ford dealership. When placed back into park and turning the key, the engine fires right up and away you go. drive to the store and have it quit 4 or 5 times before you get home.
It use to stall 1 to 2 times a day in the beginning and for the last month now it's nothing to take a 10 min. It has no effect whether the A/C is on or off. It only does it when it's near or at operating temp. The engine RPM starts to drop off and then it quits. Whenever you are at a stop sign or a traffic light or a drive thru are all prime candidates to set up for the stall to occur. The symptom is the engine stalls in drive with the engine at idle speed. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.The vehicle in question is a 2009 Ford Focus SE with a Duratec 2.0L DOHC engine with 128,000 Km. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file.
2009 ford focus software#
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