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2004 Cadillac SRX Question: car has 250k miles running very rough and when it starts there is jingling noise

 

Question

myshadow2, 4.6L V8, Potwin, KS, April 17, 2013, 14:41
 Rookie

never had tune up or timing chain done??

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  • Answer #1

    arturo08 April 17, 2013, 15:02
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     Master

    jingle or rattle sound. poss. cat. conv.
    rough running. review when last tuned up. it may be due.
    rec. tune up every 50,000 miles.
    rec. fuel system clean. ethanol treatment to 1 tank premium fuel.
    rec. oil stabilizer treatment with next oil change.

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    myshadow2, April 17, 2013, 16:40
     Rookie

    thank you it never has had a tune up i have had it for the last 220k miles

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    arturo08, April 17, 2013, 18:12
    Profile_thumbnail
     Master

    no prob. good day.

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