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I know that this is a VERY old thread, but I want to post the resolution for anyone who might see it. The whole time, this car has had a loud ticking noise that sounded like an exhaust leak or vale-train noise. I replaced rocker arms, pulled exhaust and looked for leaks, listened with hoses and...

I am not sure yet. I put on an aftermarket boost controller, but I haven't started adjusting it much. At first the boost was spiking, but I made some modifications to correct that. I have a hard time messing with it in my part of town do to the low speed limits, but I just bought a company...

Jiho2, by today's gas, I have been told by numerous people that the additives in current gas cause problems with the older chips. I guess they are referring to Ethanol, but it seems to me like that wouldn't cause a problem. I didn't think that it would be a problem, but a number of people have...

I am off of 45N between 610 and the Beltway. I have fixed the cracks in the header, but I have not taken it back out yet. I think I am going to go ahead and buy 60# injectors and a chip from TurboTweak. However, they seem to be closed this week. I am under the assumption that the Kenne...

I have not gotten a scanmaster yet. I have been driving around logging everything with WINALDL. I've been waiting to buy the Scanmaster because I think I have a friend that is not going to need his. I am using an Autometer after market boost gauge, and I do not have an adjustable waste gate...

I bought an 1987 GN several months ago, and I have been trying to sort out all of the performance issues. The previous owner was meticulous about making things look nice, but I don't think that he ever stepped on the gas. It is basically stock, but has an aftermarket cone air filter and hard...

It took me a while to get back to this, but I wanted to write up what I found in case anyone has similar problems. The reason I was having problems with only 3 forward gear positions was that the bracket holding the cable sheathe to the transmission was bent. When I bent it back, I was able...

I am fairly new to Grand Nationals and automatic transmissions. I purchased a Grand National several months ago, and have been going through several problems (replaced turbo, shorts in radio, new window motors, suspension, etc). Now I am going through the transmission issues. From the...

I just purchased an 87 Grand National, and I've been going through and getting it more road worthy. The steering is the next thing I want to get corrected. The previous owner replaced almost all of the front suspension components, but there still appears to be play in the Steering Box (and...

Do you have any idea of the history on the Turbo? Miles, how long it has been sitting, etc?