Fizzy T Posted May 3, 2015 Share Posted May 3, 2015 (edited) My TT Auto UK spec seems to of developed a problem and I wondered if you peeps had any ideas as to what it is... Oh and yes my engine bay is a horrid sight When you fire it up from cold and the revs sit around 1k which as far as I know is normal...it's after a minute or so the problem starts. Basically the revs drop down to around 500rpm and every 4-5 seconds there's a shudder like it's running on 5 cylinders for a second and it will continue to do this every 4-5 seconds. If you hold the revs around 2-3K it still does it but obviously quicker. Actually sounds like the exhaust is popping like it's got a lame version of anti lag The above is what it's like when not in gear, when it's in gear it's fine on boost or at the very least it's not noticeable. When you're at slow speeds (pulling away from junctions or in slow traffic) it's quite bad, the car hunts for revs and acts almost like a slipping clutch. I made a video but it doesn't seem to be that noticeable as the mic on the phone isn't the best. https://dl.dropboxusercontent.com/u/91738842/20150501_182045.mp4 The steps I've done thus far... * Checked the timing marks. * Cleaned the connections to spark plugs and checked their condition. * Cleaned out the idle control valve. The problem still persists, the oil on the rear 3 cylinders has been like that for the last 3 years and hasn't got any worse. Edited May 3, 2015 by Fizzy T (see edit history) Quote Link to comment Share on other sites More sharing options...
Fizzy T Posted May 3, 2015 Author Share Posted May 3, 2015 (edited) One cam does look ever so slightly out. Coilpacks look to be in good condition bar some oil on the rubbers, I cleaned them up and pulled out the plugs to check them all over before refitting it all. The spark plug holes look rather nasty due to the leaking cam cover seals... Edited May 3, 2015 by Fizzy T (see edit history) Quote Link to comment Share on other sites More sharing options...
supra matt Posted May 3, 2015 Share Posted May 3, 2015 Hi mate did you try them other coil packs and how old are the plugs? Also how are the coil pack clips Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted May 3, 2015 Share Posted May 3, 2015 Check the coil pack clips, common problem on 2JZ's. Quote Link to comment Share on other sites More sharing options...
Benjy Posted May 3, 2015 Share Posted May 3, 2015 I was going to suggest clips aswell. The timing looks ok. Quote Link to comment Share on other sites More sharing options...
Fizzy T Posted May 3, 2015 Author Share Posted May 3, 2015 I haven't tried swapping over the coilpacks yet, the black plugs I presume you mean when you say coil pack clips? They seem to be in good shape, don't appear to be brittle. The plugs were new around 5k ago. Quote Link to comment Share on other sites More sharing options...
safcdixon Posted May 3, 2015 Share Posted May 3, 2015 Idle control valve needs cleaning Quote Link to comment Share on other sites More sharing options...
Fizzy T Posted May 3, 2015 Author Share Posted May 3, 2015 Idle control valve needs cleaning Refer to the bottom of my first post Quote Link to comment Share on other sites More sharing options...
safcdixon Posted May 3, 2015 Share Posted May 3, 2015 Refer to the bottom of my first post My bad, it was a long post must of missed it Quote Link to comment Share on other sites More sharing options...
MattP Posted May 3, 2015 Share Posted May 3, 2015 My bad, it was a long post must of missed it Assclown.. Quote Link to comment Share on other sites More sharing options...
safcdixon Posted May 3, 2015 Share Posted May 3, 2015 Assclown.. Coming from you thats kinda ironic Matthew Quote Link to comment Share on other sites More sharing options...
MattP Posted May 3, 2015 Share Posted May 3, 2015 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.