Shuddering At Low Speed, Tight Turning And Aircon

[910trx]

when i have been pulling into the carport after work, as i slow down and near full lock and just let the auto pull me into the parking space, the car shudders and looses rpm

i have only noticed this of late with the need to use aircon.

i'm thinking it is the engine at idle turning both the powersteering pump and a/c compressor making it hesitate

is it an issue, common, really worth me worrying?

[pixel8r]

does it do it any other times? I had an issue where the steering would cause it to lose revs and sometimes stall when driving at low speeds, and very often when pulling into my driveway in a block of units (full lock one way then the other).

First I had the power steering fluid flushed (that was all nissan could find) which kind of alleviated the problem ever-so-slightly for a few days...and then it was back again.

But it turned out to be a build-up of black around the butterfly on the intake, making the butterfly sticky and so it couldn't adjust the idle quick enough. The M35 has no idle air bypass valve so it relies on the ecu adjusting the throttle to let the right amount of air in.

If you have some time, remove the throttle body and give it a good clean out. This fixed the issue 100% for me and straight after that it idled perfectly every time. I did have to do the idle-relearn procedure afterwards to make it idle at the right revs again (i think there's a sticky in the DIY or servicing section at the top of the forum).

Some other guys had the same or similar problem although not all of them were the same cause...

If you find the solution, let us know

[910trx]

thanks for that - it is very occasional but when it happens you notice it.

i'll give that a try one day when i'm bored and inspired - it causes no issues, just curious to why.

your example seams very plausable i'll try that first

cheers