1990 ZR1 Questions

[tomtom72]

Hi and welcome to the BOB Congrats on the car!

I bought a car similar to yours, < 8K on it from the orig owner in 12/04. I was gonna try to go the NCRS route but things started to go south quick and I also couldn't keep from driving the car....it is too much fun & tooooo addicting.

The tires are unsafe, they're dried out & hard = no grip. Plenty o tread but trust me they will make you wish you had traction control. Save'em & get new shoes if you're gonna drive to the NCRS meets. Mine came from a climate controlled garage too.

My primaries went at about 10K miles, whole set of RC's was my answer, no faith in the OEM stuff. 2* vac leak = control solenoid n/g....so I redid the entire system and the CCV box gasket & hoses & saved the good stuff. Also r & r'ed the wires & coils while I was under there. Plugs were OEM along with the PCV's & fuel filter & a/filter! At least the coolant & oil was kept up with! Brakes & clutch hydraulics started to act out next. Fluids resembled coffee complete with grinds! The guy did book maintenance.

I'm not saying that you will have all these issues. Mine wasn't used much & when I became addicted I used the car so I believe that caused all the extra issues for me. The thing is hydraulic equipment don't like to be disturbed if it was on vacation....I disturbed mine so it answered back. Oh yea I forgot the CD had to go to Dr.Don for the fix.

I decided to just fix all the issues & enjoy the car without the NCRS dream. Too much non-OEM stuff on mine now. Be gentle & you will proly be able to keep most of the original stuff on the car. Oh, keep the coolant fresh & only use 1825M coolant (ya can still order it from the local chevy store. Do Not use any un-silicated coolant in the LT5!) and the OEM hoses should be okay as long as it's not gonna see b to b traffic. I just couldn't leave all that stuff on mine....I've no faith in 15 yr old parts like that.

Enjoy you're new toy!

Tom

Oh, forgot this. You may want to do some reading over at the netreg site in the maintenance & common issues sections. I also urge you to visit zfdoc.com & read up on the trans and clutch hydraulic system. Bill B has care & maintenance info along with a great diagnostic's Q & A. JMHO.