Question about 1999 Ford F150 Regular Cab
It means that cylinder #5 isn't firing some or all the time. The most common cause for that on the motors is faulty a igntion coil. Some of them are hard to access. You are lucky as #5 cylinder is the front one on the driver's side of the motor. Replacement coils are available at autoparts stores, price dosen't matter on these, buy the least expensive.
Posted on Mar 16, 2011
A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5.
Symptoms may include:
* the engine may be harder to start
* the engine may stumble / stumble, and/or hesitate
* other symptoms may also be present
Causes: A code P0305 may mean that one or more of the following has happened:
* Faulty spark plug or wire
* Faulty coil (pack)
* Faulty oxygen sensor(s)
* Faulty fuel injector
* Burned exhaust valve
* Faulty catalytic converter(s)
* Running out of fuel
* Poor compression
* Defective computer
About the possible solutions:
* If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
* If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.
Hope this helps (remember to rate this answer).
Posted on Mar 16, 2011
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Posted on Jan 02, 2017
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Sep 27, 2014 | Cars & Trucks
Apr 27, 2014 | 2002 Ford F150 Regular Cab
There are few possibilities that can cause engine misfire
issues. It can be issue with spark plugs or faulty spark plugs. Also get the
compression test done for cylinders. If any of cylinder shows low compression
then required, then that particular cylinder will cause misfire.
Also get obd codes scanned, the error code will let you know
which cylinder is misfiring or all cylinders are misfiring.
For your trouble shooting I suggest you to refer the help
oinks below. It has step by step details for many engine misfire issues.
Click the link below:-----
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