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Posts Tagged: misfire codes

Check engine light on, misfire and injector codes

Check engine light on, misfire and injector codes GM has issued a PIP bulletin #PIP4924D to address a check engine light on, misfire codes, injector codes on the following vehicles: 2009 Buick Allure (Canada) 2009-2014 Buick Enclave 2009-2014 Buick Lacrosse 2013-2014 Cadillac ATS 2010-2014 Cadillac CTS 2009-2014 Cadillac SRX 2009-2011 Cadillac STS 2013-2014 Cadillac XTS 2010-2014 Chevrolet Camaro 2010-2014 Chevrolet Equinox 2012-2014 Chevrolet Impala 2009-2014 Chevrolet Traverse 2009-2014 GMC Acadia 2010-2014 GMC Terrain 2009-2010 Saturn Outlook 2009-2010 Saturn Vue with 2.8 LAU, 3.0L LF1, LFW and 3.6L LLT, LFX engines … Read More

Misfire Ford Windstar

Misfire Ford Windstar with the 3.8-litre engine This problem may be easier to diagnose than to repair. The exhaust gas recirculation (EGR) valve meters exhaust flow from the exhaust pipe to the intake manifold. From there, the exhaust flows through a small orifice at each individual intake port. Carbon buildup can block off these orifices. When that happens, the excess exhaust gas flows into other cylinders, causing misfires. To determine whether the misfires are EGR related, simply unplug the vacuum hose running to the EGR valve. Plug the vacuum hose … Read More

Ford Ranger Misfire Codes

Fix Ford Ranger Misfire Codes ┬áP0300, P0301, P0302, P0303, P0304, P0305, P0306, and P0316 You’re not going to be a happy camper when you’re done reading this post. Ford has issued a TSB #05-26-3 that describes a fairly significant design problem with the cylinder heads on 2004-06 Rangers with the 3.0 overhead valve “Vulcan” engine. The problem shows up as any of these misfire codes P0300, P0301, P0302, P0303, P0304, P0305, P0306, and P0316. The TSB states that the cause may be an exhaust valve “recession” that causes a loss … Read More

Subaru misfire, Impreza, Forester, Outback, Legacy

Fix Subaru misfires P0301, P0302, P0303, P0304 Subaru misfire problems can affect 1999-06 Subaru impreza, and Forester 2.5L, and also soem 2000-06 Legacy and Outback vehicles. The Subaru misfire can be related to the ignition coil. Before jumping to replace the plugs and wires, check the ignition coil and wires for carbon tracking. Start by checking the coil towers. Look for what appears to be small cracks about 5mm long. If the coil towers look clean, check the spark plug wire boots where they connect to the coil towers. If … Read More


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