Question about Cars & Trucks
Run the fault codes as what you have done may only be by passing the real faulty sensor. Check the cat converter for failure and blocking the exhaust system
Posted on Oct 13, 2013
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Posted on Jan 02, 2017
This could be a number of things but i think that your problem sounds like a vacuum leak or an EGR problem. Try listening for leaks and try un-plugging the EGR solenoid valve one time.
Posted on Apr 17, 2009
Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps
Posted on Mar 05, 2010
There could be many issues. These codes read your engine is running too lean. Check : all your vacuum hoses for leaks, PCV valve and hose, MAF sensor. This may require an experienced technician to figure this out. Hopefully I help'd!!
Posted on Apr 05, 2010
I Have a 1999 ford f150 4.6 that back fires and is just running really ruff when idling alot of nack fire a sord of like a pulse going on what is my problem?
Posted on Oct 12, 2011
Tips for a great answer:
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After replacing brake rotors and pads,
brake pedal remains on floor?
accelerator pedal sensor?
For rough idle issues and problem troubleshooting,go through the help links provided below :----- van idles rough?
will not idle when cold?
runs lean and idles rough?
Engine stumbles coming off idle when warm?
Erratic idle on car?
Low idle when cold out side?
Idle Air Control (IAC) Valve Replacing?
Engine quits at idle?
Car overheats and Air blows hot at idle?
While stop engine idles like cylinder missing?
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