Jump to content
SAU Community

Recommended Posts

Hi guys,

Recently during the mornings when I start up my skyline it seems to shudder a little. The oil pressure remains at 0 for a few seconds and rises as soon as the shuddering stops. When I bought the car it didn't have this problem. Also this only happens when the car is first started, subsequent ignitions don't have this problem. Any ideas as to why this occurs??

Thanks in advance.

EDIT: I forgot to add that the car is completely stock, no mods whatsoever.

Edited by r34gttt
Link to comment
https://www.sau.com.au/forums/topic/312205-engine-shuddering-on-start-up/
Share on other sites

A sparkey can connect it to their diagnostic computer, or if you have a search through the forums I am pretty sure you can use the paper clip method on a 34 to check if there are any codes on the ecu.

If it shudders for that long or less its probably nothing to worry too much about, that being said - my 34 GTT does not shudder at all when starting.

A sparkey can connect it to their diagnostic computer, or if you have a search through the forums I am pretty sure you can use the paper clip method on a 34 to check if there are any codes on the ecu.

If it shudders for that long or less its probably nothing to worry too much about, that being said - my 34 GTT does not shudder at all when starting.

It's strange. This morning when I went to start it, it didn't shudder at all. Very odd. Maybe it has something to do with the cold weather. I'll have a mechanic look at the ecu in a couple of weeks when I get it serviced.

well the good news is oil pressure relates directly to engine revs. so if revs are 0 or even under 300 would expect the oil light to be on.

need to find out why idle is not stable at 800 or whatever it should be - these cars have a beautiful idle when healthy

This also started happening to me recently, and i also suspected it was due to oil. I changed my oil to a 5-30w (was a 10-40) and it happens less, though it does still happen once in a while. I'm wondering if it isn't the oil pump. My car has only done "61000" kms, but maybe it's time to do the 100k service and change the oil pump. Not sure if you can check the health of the oil pump either... the pressure seems to be fine, but like your experiencing, sometimes on startup it will want to stall and the revs drop right down.

It also sounds silly, but it doesn't seem to happen when i hold the key in the 'start' position a fraction of a second longer than i ordinarily would... does that indicate a tired motor?

It also sounds silly, but it doesn't seem to happen when i hold the key in the 'start' position a fraction of a second longer than i ordinarily would... does that indicate a tired motor?
I think we may have the same issue. My motor's barely done 55000ks though so it's very odd.

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


  • Similar Content

  • Latest Posts

    • Hey keep the ideas coming, I'm always keen on projects! But, problem fixed!  I got a cheapie ozito scope from Bunnings and had a good look in and around the bearing and sensor hole. I couldn't see a smoking gun but the bearing looked a bit strange, especially when comparing with a new one. I thought the cover had come off the bearing magnets.  Sorry for pics of a screen, I didn't have an SD card.     Good thing I had the old one to inspect. So, given I'm like a pit crew with wheel bearings and luckily I had a spare bearing because I f**ked up my parts order, I decided to just smash it out. Got the old one out in about an hour. So much easier when the parts haven't had a chance to rust together yet. 😂 And, well, found the problem.    In the second pic at about the 8 o'clock position, you'll see what I think is the tip of the old sensor.  The new sensor has definitely been rubbing but it's all intact, just a little shiny so I'm hoping it's fine.  The car brakes perfectly now and no errors.  I think the job took about 2.5h in the end. 👍🏻 I really appreciate the help in here as usual. Thanks guys.
    • I was only looking because I saw some drops on the ground but it wasn't alot. Recently had it serviced will ask the mech to confirm. Find it strange that it looks standard though, can see in another photo of a random box 
    • So...not sure if you know if that has always been there or why you went looking. It could be old damage from a clutch explosion, or even just the gearbox got dropped somewhere along the line. Basically, you should seal it up to stop oil and dust getting into the bellhousing, but it doesn't matter too much and is not structural. I'd suggest something like a glob of JB Weld. BTW what gearbox oil are you running, I would guess the breather has been spewing it everywhere.
    • Hey Duncan thanks for your reply. Sorry mate I know the photos are shit.  Took another photo for reference. Seems the casing does have a hole in it looking on the net, fluid seeping out. Added a photo   
    • Very hard to make out what you mean, is it the squarish hole with redline shockproof (probably) under it? Is that pic from on top of the engine with the firewall to the left of pic and engine to the right? Either way, spray the area liberally with degreaser and try again, maybe circle the part you are worried about
×
×
  • Create New...