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tb42 running rough

Tech Talk for Nissan owners.

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Posts: 325
Joined: Sun May 08, 2005 4:55 pm
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tb42 running rough

Post by mudmav »

hey guys on monday i filled up my tank at a different servo thatn usual put 98 octane unleaded in my mav. anyway ran fine for the first 150 ks now, when i start the car it is missing badly, once it gets to operating temp at idle it runs smooth but for about the first, 10 to 15 minutes you drive it it coughs splutters misses and backfires. i would have thought if it was fuel that it would have stuffed up almost straight away. Anyway i have checked plugs and leads, i have elec ignition so it cant be points. Any ideas or should i just drop the fuel replcae the filter and see what happens.
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Post by Madmac »

could be one of a few things, possibly auto choke problem, a crook lead or plug, maybe even a crook coil. id start with the cheaper things like plugs and leads, then filters, check the timing too
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Post by tuffzook »

Are you losing any coolant , or is the overflow gaining any coolant. This could be signs of head problems , very common on these. :cry: :cry:
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Post by mudmav »

nah its not the head had that tested about a month ago. and no coolant loss or pressurising of the cooling system
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RN
A speed camera would have prevented that!
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Post by RN »

Fuel filter...maybe you got some dirty fuel and the fuel flow is being impeded.
I am the Nightrider! I am the chosen one. The mighty hand of vengeance, sent down to strike the unroadworthy!
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Post by its aford not a nissan »

sounds like the auto choke to me
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Post by mudmav »

ok so i dumped the fuel and changed the filter ive done nearly 60 k's since and still have the same symptoms. So lets assume its the auto choke (even though i had my carby rebuilt less than a year ago) what do i do to fix it, i would normally take it back to the shop that rebuilt it but ive moved and they are like 100 k's away then.
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