This is about my daily driver. The GTA is in the garage in all this snow lately.
I have an 85 Chevy Caprice with 343,000 miles on it ( yes 343,000) . Suddenly, I am hearing a clicking / snapping sound from the center / right of the dash during acceleration, and also sometimes during deceleration, and also when in Park, at about 1500 rpm. The noise comes and goes, but usually it is there during high end of the gear during accleration. Sometimes not there at all, even while accelerarting. It's an unevenly spaced click / snap sound, like a spark knock.
At first, I thought my spark knock was coming back, but a spark knock doesn't occur in neutral, and during deceleration. So I am thinking it might be : u-joint... transmission... distributor... exhaust... or speedo (but would speedo click in Park?)
It happens with and without the heater fan on.
I can't see anything unusual under the car or in the engine compartment. Have not been able to drive it up on ramps yet to get a good look.
It started 2 days ago, out of the blue, and is about the same as it was 2 days ago.
Sounds like it is coming from the dash, but I guess it could be from the trans hump too.
I hope it's not the trans.
ANy ideas welcomed ! Thanks