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Is it a bad idea to put regular 20 inch rims on a grand national I don't want to hurt anything?

I just found our my throttle position sensor was bad could that cause an angine knock from the computer reading my throttle position wrong?

My oil pressure gauge reads 10 psi when car is warm this is at idle only is that normal

Just got some NGK ur5 plugs and was wondering what's a good gap size for my car I'm not stock I did a little upgrading any suggestions?

R nkg ur5 plugs the best for an 87 national

I just got my oil gauge working what should it read when cold and what should if read when warm?it reads around 80 cold

A rod knock should be present when you start the car up right?cause I only hear this sound 20 mins after car is driven?

Does anyone know of a good mechanic that can work on a 87 grand national a shop recommend? I'm in the north bay area close to vallejo

I'm looking for a grand national mechanic someone good in the bay area Vallejo area Posted from the TurboBuick.Com mobile app

Will your in car knock gauge tell you if you have a rod knock how do you read the gauge

Does anyone no a good grand national repair shop in the bay area California?

87 gn is there an easy way to check for a crack flex plate or bad flex plate Posted from the TurboBuick.Com mobile app

What is a good brand and oil weight for 87 national not stock different cam and bigger turbo I use amsoil dominator the problem is when I drive for 20 min more I hear a knocking noise under the car not a start up the car has to be driven I just replaced a bad catylic converter with straight pipe...

Whats the best spark plugs to buy for an 87 grand national

I took off my bad catylic converter from my 87 grand national and I replaced it with straight pipe I noticed since then it makes knocking or slapping noise when I drive the car for a while is this because I have no cats