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Engine Miss fires when cold

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  #1  
Old 10-20-2009 | 04:36 PM
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Default Engine Miss fires when cold

I noticed the engine will miss fire when I try to get on the gas a little when cold. When fully warm, no problems. Any suggestions?
 
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Old 10-20-2009 | 06:14 PM
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What year and miles, what octane gas are you using and when was the last tune up done?
 
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Old 10-21-2009 | 06:52 AM
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thanks for the reply.

95,970 miles. Octane = 92. Last Tune Up = ??? Going through and changing all the fluids first.

Just bought the vehicle September, looks like they did pretty good maintenance, but no records.
 
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Old 10-21-2009 | 05:45 PM
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Sounds like a tune up may be in order, at least then you will know for a fact when it was last done.
And keep in mind that 90% of O2 codes on a Rover are due to the need of a tune up.
 
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Old 10-22-2009 | 12:23 PM
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Thanks for the quick response. I have not checked any codes yet. Will work on the tune up next along with the radiator (heat exchanger) fluid change before it gets to cold.
 
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Old 10-23-2009 | 10:21 AM
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Make sure you throw a set of 8 mm Magnacor wires when tuning it.
Have you been having to add coolant, or is the level real low in the morning, if so soon as you start your engine, go back and smell your exhaust, if it smells sweet, you may have a head gasket leaking into a cylinder over night.
 
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Old 10-23-2009 | 12:47 PM
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I do not believe there is a coolant leak. Just changing all the fluids and performing all maintenance. Thanks for the heads up. I will smell the exhaust today. Will order the 8 mm Magnacor. What spark plugs would you recommend?
 
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Old 10-23-2009 | 03:54 PM
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Any Iridium plug you want.
I used Denso last time and AutoLite this time.
 
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Old 10-24-2009 | 08:36 PM
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thanks. Hope you have a great week end.
 
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Old 10-24-2009 | 08:40 PM
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tune up time
 


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