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xr 4x4 2.9 miss fire???

Old 16-08-2009, 06:50 PM
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airwave
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Default xr 4x4 2.9 miss fire???

hi i have recently got my hands on a mint condition 2.9xr 4x4 , if i drive car straight away after starting her she hickups badly, but if i leave it ticking over for a few minutes its fine, also occassionaly owt on the road it feels like it dies for a split second and then is fine again.
i changed the plugs the other week with no success, any help would be much obliged

stu
Old 16-08-2009, 10:38 PM
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capricougar
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try vaccum pipes, poss leak? also ht leads may be on way out. spray all leads with wd40 inc coil ht & lt leads, if this tempararly, cures it replace or secure wiring . check all wiring for wear or loosness on ignition.hope it helps.
Old 17-08-2009, 07:35 AM
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Make sure the plug gaps are right.I did a scopio V6 years ago with a missfire and one of the new plugs wasnt gapped properly.
Old 19-08-2009, 04:39 PM
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cheers for ideas ive tried all that , a mate of mine told me it could be the air flow meters ??
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