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I have a ford 150 4.6l she started ti run low when i stop at a light ir stop sign. It wants to turn off. took it to auto zone they put it on the machine. it said spark pkugs and mass flow sensor and plugs. i changed plugs except for one i couldnt get out and i cleaned the mass flow sensor with a cleaner but it still doing the same could ut be the one spark plug i didnt get out.

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Have to remove the PCM to to that spark plug
You most likely have a couple bad COP Ignition
Coils
The front O2 Sensor get replaced at 100,000
miles
I don't understand the question,run low
Now you cleaned the MAF Clean the Throttle
Body with CRC Throttle Body Cleaner

Posted on Jul 28, 2013

  • noel castillo Jul 28, 2013

    I meant it was spottering.

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 422 Answers

SOURCE: I have a 1999 oldsmobile

fuel pressure regulator on the fuel rail is probably it or the egr valve is stuck open allowing burnt fuel to flood the intake, im leaning towards the fuel pressure regulator because the o2sensor is probably reading rich or if its reading lean then i would choose the egr valve . good luck

Posted on Aug 26, 2008

SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com

Posted on Oct 17, 2008

  • 2039 Answers

SOURCE: Missing in every gear..

you have to see if the coil pack fire up do you have spark coming out of the coil pack cylinder 2 never mind the other code the missing cylinder make the other sensor malfonction check if you have spark coming out of the coil pack if not change the coil pack if you have you spark check the compression let me know pierre please dont rate right away we work together to fix our problem because i whant you to get our car running good and i whant a fixya anything else is bad for me thanks pierre

Posted on Feb 25, 2009

  • 1118 Answers

SOURCE: 1999 fire bird wont start

Sounds like a fuel problem, when was the last time the fuel filter was chg.? If that is not an issue, than a fuel pressure test is in order, It should have around 48 to 50 p.s.i.

Posted on Jun 16, 2009

  • 147 Answers

SOURCE: Repalced O2 sensors, mass air flow sensor, and plugs error messag

dpfe velve

small emissions valve with one electrical connnector and three to four vacume lines located near your egr valve. this is a comon fault on fords emmissions system.

Posted on Aug 15, 2009

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It idles when stopping what causes the problem it was running well this morning I checked the oil it was every low it's a 2001 ford escape


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