My 2003 Chrysler Voyager, 3.3L, SFI, runs very rough and at times it almost dies out while driving. The engine seems to choke up at times. I just replaced 6 old spark plugs with 6 new spark plugs, Bosch Platinum +4 /Spark Plug. I also replaced wire set for spark plugs with Bosch's wire set. The wires are connected correctly. Is it the wrong spark plugs to use? Should I use Champion's Double Platinum Power as recommanded by someones I know. Please also advise the exact gap for spark plugs of this van. Thank you very much.
Re: My 2003 Chrysler Voyager, 3.3L, SFI, runs very rough...
Chrysler Voyager seem function well on Champion spark plugs. I had the same issue and only after buying Genuine Champion Plugs, the car resonded with power
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The 2003 Focus doesn't use a carburetor so there is no choke. What are the symptoms that makes you believe the choke is stuck on? Is there black smoke from the tailpipe when the engine is warmed up? The engine runs rough all the time when warm? I think we will need more information to help with your problem.
Sounds like a automatic choke sticking....Take the air duct loose from carb..While accelerating engine spray bottle throttle spray in.....as the car tries to die...stop spraying...Repeat 3 or 4 times.....It will clean your injectors. Runs alot better...Remember....bottle throttle spray...not carborator spray
Find your air mass flow sensor in the stiff collar of the air ducting immediately after the air filter. Have the engine running and disconnect the plug to the MAF. If this makes the car run evenly again you need to replace the broken MAF. The misfire on plug 4 I think is a downstream event of the MAF not sending the right info to the ECU and consequently not providing the right fuel / air mix to the engine
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