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Thanks Micky What do you torque head bolts to? Just asking.

Hi Mickey I'm after another favor if I may: 1/ What is the head bolt tightening procedure for a later, 2007 say, naturally aspirated N*? 2/ Did the OEM head-bolts on my 2004 come with thread lock? Background. The Cadillac dealer has removed both heads from my X and used a torque wrench which...

An update. My Cadillac dealer left the coolant pressure test on for an extended period (probably over-night) (engine cold) and in the morning, using a high end (ie high definition and able to swing the head around and upwards while in the bore) boroscope, found a tiny weep in the #8 head gasket...

For me, this is the advantage of having both. I have lost signal, been diverted and then have to go into fallback mode of getting a paper map out...

Ah yes. 2004! Thanks for your thoughts. As you can see from this thread, I started thinking about this years ago and then got busy on other matters. Agree re map DVD. I tried to get a Toyota DVD to work (same brand), but no joy.

So, returning to this thread, what is the advice for the latest technology sat nav units and the interface units too. Anyone want to chip in?

Ah. No, I don't think so, nothing that matters too much. That looks like part of the clip mechanism for the engine cover. There is another one further forward in your picture, with the ball head on it. Check the underside of the cover and see if it lines up.

Sounds like PCV. Conventional induction (I can't speak for SC). On the right bank (your left when you are looking from the front), there is a hose which goes to #8's induction (at the back on your right, driver's side). If this is missing, you will get a serious vacuum leak into #8. On the...

I can't speak for this unit. You need the pcmcia card which covers Cadillac (which IIRC is included in the N. American GM pcmcia card). GM made a series of different pcmcia cards for different regions. Just check with the seller. They have been known to throw in the correct card FOC just by...

Thanks Micky Well, you tried. Sorry for the tardy reply, I've been busy. I'm going to work on the basis of 10 degrees and 85 lb/ft (max both, which ever comes first).

From memory it is a very simple, very cheap metal piece. GM have been using this simple clip and 'nut' for years, calling it a nut is going a bit far, it is a flatish 'U' shaped bit of metal (clips over both sides of the frame) with a hole and a twist to it which engages/catches the thread.

Crazy problems like this make me think of some kind of ground fault.

Check for vacuum leaks, induction sealing.

Hello Micky Back at #16 above you said: "ill have to do a littke research andcask someone that knows more than me if you can actuall depend on that." Did you ever get a reply or find out more? Very many thanks

What code are you getting? Why do you want to swap both? The throttle body position should track the throttle position. You are getting a warning that the throttle body position is different from the throttle position, which suggests the throttle body might be sticking or a wiring fault perhaps.

From memory they are a very standard screw fitting, but must be short or they will damage wiring. Max half an inch long/10mm? I would guess at 4mm, bit over an 1/8. (1/8=3mm). You can check just by looking and identifying the clip they screw into. I'll try to remember to look at mine some time.

Thanks Micky. Yeah, makes sense. I'll await the reply. (I guess you mean head bolts not crankshaft bolts!)

Once again, thanks very much Micky. The question I have outstanding, is roughly what is the torque to deliver the fourth stage of HB tightening. It starts at a torque of 30 Nm (22 lb/ft) (stage 1), then stage 2 is +60 degrees, stage 3 is + 60 degrees and stage 4 is +60 degrees. Ie a total 180...

Thanks Micky. I'll look out for any information you can provide. I have a work colleague with a high-end Snap-On torque wrench which can do both torque and angle, he says I can borrow it! With your data I'll have something to set it too.

Quote: "I've got a parts car ill be removing the intake and a head off of in the next couple days" Micky, can I ask a favor if I may? Before you take the heads off, please could you get a torque wrench and keep increasing the torque setting until the head bolts just start to tighten, then tell...