TRYING TO FIND REASON FOR CAR DYING AT INCONSISTENT TIMES AFTER REPLACING PLUGS AND WIRES.

2000 Ford Focus

Tiny

sacredwolf

June, 5, 2012 AT 1:12 AM

I HAVE BEEN TRYING TO DO WHAT WAS IN THE FIRST ANSWER, but lacking tools and time, I am taking the vehicle to a mechanic to have it tested. Hence the reason for my further inquiry, as needed to know what more could cause this issue prior to some shady mechanic painting some horrid picture costing hundreds. Just trying to get as much information as possible. No expectations of a magic wand, but just testing the fuel pressure does not explain to me a direct possible cause. Does it? I have no clue, which is the reason I came here to ask and learn! Once I have it tested I will follow up with a response.

Tiny

hmac300

June, 5, 2012 AT 1:34 PM

If you don't get the correct fuelpressure the injectors dont' ork right causing a very lean condition, hence a misfire.

Tiny

sacredwolf

June, 6, 2012 AT 1:13 PM

Car's fuel pressure checked ok. The vehicle was also hooked up to a scanner and everything tested out fine there too. The vehicle is still staggering and stalling out when put into park, or upon shutting it own and restarting it. Idle at time when it starts up and does not stall out appears to be rough but once in drive and driven levels out. I would appreciate direction from this point. What is the next thing to determine the cause?

Tiny

hmac300

June, 6, 2012 AT 1:50 PM

Two things that I can think of and I can't think of much else unless ican actually look at it and a local pro would be better at that than i. Try cleaning your throttle plate on both sides with choke cleaner, they get gunked up and cause idle problems. Check to see if you have any vacuum hoses or any rubber connection that has holes in it or are not connected. One other thing trycleaning maf sensor with choke cleaner as well and make sure no duct work between maf and throttle plate has holes in it and is connected as well. Other than thta I cna't think of anything else.

Tiny

sacredwolf

July, 9, 2012 AT 12:17 PM

I cleaned the throttle plate and the sensor. All seemed in good shape really. I checked the vacuum lines and all seemed in good shape as well. I also on a hunch and dumped in a large amount of injector cleaner on the last fill up. Currently the problem is intermittent, But goes for long stretches without any issues. Going to periodically add a little injector cleaner to the system and then check the throttle body and sensor as the summer continues to see if there is anything else that pops up. Thanks for the insight and thoughts.

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