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Jeep Wrangler YJ
YJ General Discussion
Intermittent miss
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<blockquote data-quote="Flyer58" data-source="post: 430551" data-attributes="member: 18629"><p>Bosch always had a great reputation until... they split into Bosch Germany and Bosch USA. For some reason the US side doesn't have the same quality control and the parts often fail whether it's their injectors, alternators, ignition coils or whatever else they make. This is coming from many BMW and VW owners and repair shops. </p><p></p><p>It could be the injector and cleaning it can only help but maybe not solve the problem. How long or what's the duration of the miss? If it's a quick bump that made be ignition related, if it's a one or two second stumble that may be fuel from you single point injector but again it could go either way. Can you tell if the misfire is possibly one cylinder or the entire engine? All four cylinders will give a stronger buck feeling as opposed to a light bump.</p><p></p><p>I've had good luck using Sea Foam in the tank or slowly pouring it into the intake to decarbonize and clean the intake and valves.</p></blockquote><p></p>
[QUOTE="Flyer58, post: 430551, member: 18629"] Bosch always had a great reputation until... they split into Bosch Germany and Bosch USA. For some reason the US side doesn't have the same quality control and the parts often fail whether it's their injectors, alternators, ignition coils or whatever else they make. This is coming from many BMW and VW owners and repair shops. It could be the injector and cleaning it can only help but maybe not solve the problem. How long or what's the duration of the miss? If it's a quick bump that made be ignition related, if it's a one or two second stumble that may be fuel from you single point injector but again it could go either way. Can you tell if the misfire is possibly one cylinder or the entire engine? All four cylinders will give a stronger buck feeling as opposed to a light bump. I've had good luck using Sea Foam in the tank or slowly pouring it into the intake to decarbonize and clean the intake and valves. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Intermittent miss
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