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1986 grand national check engine light (or service soon) light not working used volt meter no power changed bulb changed connector help cant smog in california:eek::

Hey guys, Well, unfortunately my time with the Buick GN has come towards its end but not without trouble. To sum it all up my experience with the GN hasn't been a very happy one although this was mostly due to my lack of any proper budget to get the car running the way it should have (poor...

HD Wastegate still for sale: $35 Stock turbo still for sale: Make an offer.

I really hope it is just a blown head gasket. Shortly after the 19.9 degrees of detonation I found out that my MAF had gone bad and was making the car run extremely lean. I don't know why I didn't figure that out before the run that hit 19.9 degrees. :mad: Anyway, how would I go about doing a...

Ta60, valve springs, and valve seals sold. Stock Turbo- Make offer HD Wastegate- $50

Everything still for sale. TA60 $200 Stock Turbo $50 Comp 979 Valve Springs plus valve seals $ 30 HD Turbo Wastegate Actuator $50

No, unfortunately I haven't been able to figure it out yet. Haven't had the chance to take it into a shop. I do know my MAF is bad now though, as I unplugged it and the car idled much better.

I think $35 is fair considering I bought this a few years ago for $50.

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Well I found out the reason it detonated was my MAF went bad. I just tested my idle without the MAF plugged in and it runs perfect and purs like it used to. So this was causing some kind of lean condition which caused the detonation. As far as the internals, I'm not sure if it's not running well...

Where is the flexplate located? I was thinking something in the bottom end but there is no noise down there. The car still holds 25 psi of oil pressure at idle and is around 65 during cruise or acceleration. The car has seen knock before above 20 degrees but it's always been at low boost and...

I took it to my mechanic and he just did a brief inspection because his shop was closing at the time but he said the ticking/popping noise sounded like it was external and that he might possibly hear an exhaust leak. I think the exhaust leak he as referring to is my adj fpr which never re-seated...

Hello, Recently I went to the track and was unable to get any clean runs in because my car wasn't running right most likely due to a bad MAF (car doesn't idle at consistent rpm's). Anyway, on my second run I detonated 19.9 degrees of knock near the top of 2nd gear before I let out running 21...

Ta60: Less than 1000 miles on it but needs a rebuild due to thrust bearing failure according to Limit Engineering. Blades are perfect but there is tremendous shaft play and the turbo leaks oil. Stock Turbo: Blades need to be rebuilt. Hardly any shaft play and doesn't leak oil. Feels like a...

I have the same ticking noise except it sounds like it's coming from the lower intake manifold. Also, my oil pressure is 25 at idle and 65 at WOT and I always use ZDDP. What could the noise be? It came after a run at the track which saw 19.9 degrees of knock in 2nd gear until I let out.

The power antenna works fine though. Anyway, the wires connect to a square sensor looking thing that is mounted on the area where you would put a strut bar. It's got three LED lights on this square.

I just noticed I have a clicking or ticking noise coming from the driver's side near the intake plenum. Could it be one of my injectors or some form of a misfire? It's definitely not coming from the head to suggest a valve train issue.

That is exactly what I'm thinking. If I remember correctly, the last time I used Seafoam and ran it through the upper intake I noticed some smoke coming out where the header goes into the turbo, and that is right where the O2 sensor is. This would make a lot of sense since I only have 11-12...

Looking for a stock MAF because my re-manufactured one just took a dump.

Okay, just did the tap test with the screwdriver and noticed absolutely no change in idle. My O2's were around 300 this time. Btw, I also have really bad tip in stumble when I take off from a stop. It's like the car almost dies from too much fuel at once but kicks back in.