Jump to content
SAU Community

Shuddering At Low Speed, Tight Turning And Aircon

910trx

By 910trx,
in Four Door Family & Wagoneers

 Share

Recommended Posts

910trx Proficient

910trx

Posted
Posted

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 Mentor

pixel8r

Posted
Posted

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 :cool:

910trx Proficient

910trx

Posted
  • Author
Posted

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

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      Neil's R33 Gts-t Build

      By Dose Pipe Sutututu · Posted

      Let's hope that's not a copy pump either. There were so many copies of them back in the day.
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Damn it, I was at work last night, and stayed in a room there during the storm with the car outside, but undercover, I just went downstairs and well....there was a large steel locker that has come from some place last night, it wasn't anywhere I could see yesterday, and yeap, it landed on the fraking car....of course it did..... LOL So, I'll need to take it back for paint and panel, luckily it was only the boot that took the hit, so it could have been worse Serves me right for staying at work and getting on the cans with some of the boys
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Yeah, really happy with how it all turned out As for aftermarket lip, nah, I'm not really a fan for practically reasons on a street car that gets driven everywhere  I did have the full lower kit on my 2015 STI, but found the front lip scrapped alot, even at stock 4x4ish ride height As the NC sits now, with the lowest point of the car at 110mm, so just legal, some steep driveways and steep speed humps will still "just" scrap those little plastic OEM air dam thingies on the undertray just before the front wheels
    • Dose Pipe Sutututu
      Hypergear Turbochargers and High flow Services Development thread

      By Dose Pipe Sutututu · Posted

      Here's one I help build and tuned a decade ago, Garrett  GTX3071R Gen 1, T3 twin scroll 0.83 rear housing. Went from larger 272 cams down to smaller Tomei Poncams to help with the low end. S13 non VCT motor. Car was purpose built for the track, hence low down was the focus. Note the actual dyno chart shows lower boost, however the EBC and boost gauge showed 1.9Bar (Ignore the torque, I was young and didn't know how to set derived torque)  
    • hypergear
      Hypergear Turbochargers and High flow Services Development thread

      By hypergear · Posted

      I’m doing some side developments on SR20det S13 engines, its one my hobby cars used it to compare flow capacity of some smaller size wheels. SR20det is one of another JDM legendary engines I'm sure there are plenty of SR enthusiasts on this forum, I will share results some common turbo configurations here. a quick run down of what the car is: Wide body 180sx Type X with black top engine (blue). It has: Stock bottom end Haltech 1500 ECU 5-0 motorsports trigger kit Kelford SR20DET Beehive Spring with Titanium Retainers Kelford Cams SR20DET S13 188-B 268/272 Cams G25-660 Turbocharger in T2 .64 rear housing internally gated ARP Head studs MLS head gasket 1000CC ID injectors Walbro 450L Fuel pump Front mount cooler kit JJR’s 3 inches turbo back exhaust (its too short for the 180sx it had to be extended) Pump 98 fuel Hub Dyno tune So far made 270rwkws at 22psi full boost by 4500RPM. Engine is very knock limited hence a pretty bad looking top end. From previous experiences it seems like SR20dets are happier with bigger size turbine, some thing like a GT30 would make way better top end, but on same time response is lost. It won't be a problem with S15 VCT engines. I'll be testing alternative turbine housing, turbine wheel and possibly dump pipe options for extra flow to resolve the problem and of course E85 would resolve all the issues.            
×
×
  • Create New...