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gq patol tb42 missong at idle when hot??????????

Tech Talk for Nissan owners.

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Location: Melbourne

gq patol tb42 missong at idle when hot??????????

Post by 1st mav »

can anyone help my gq\mav petrol gas has a miss at idle when engine gets hot .
Only seems to do this when running on gas,is this a major fix? Head Gasket?
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Post by pongo »

i had a v8 chev that had this problem. was eventually found and was the intake gasket leaking but sucking air from inside the motor and not externally. took ages to sort out.

Id check for vac leaks
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Post by raptorthumper »

Check your valve clearances first. They need doing regularly when on gas, and cause misfiring at idle.
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Post by Ruffy »

raptorthumper wrote:Check your valve clearances first. They need doing regularly when on gas, and cause misfiring at idle.
X2.. Sounds like a valve clearance issue. A tight tappet will cause a miss at idle but go away at revs.
As mentioned running gas will require valve clearances to be checked more frequently. If not you run the risk of burning a valve.
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