1988 IROC Z
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
1988 IROC Z
The background: My uncle special ordered this Camaro through a local dealership back in 1988 (I believe). He kept this as a fun car and always had it garage kept and not used as a daily driver. As time went on he ended up increasing his collection to include a 70 Chevelle SS. He loved that Chevelle so the Camaro stayed in the climate controlled garage for many many years. Every time I saw this Camaro I would remind him that if he ever wanted to sell it, I would take it in a heartbeat. A little over a year ago he had passed away and being that I always loved this car, plus it would allow me to keep apart of him around I knew I couldn't let it leave the family. So, here are a few pictures of it along with a picture of my fathers trans am at a local car show last September.
Right now as it sits it is all original except the battery. It currently has 18,285 miles on the odometer and I don't plan on putting many miles on it during the summer months.
Figured it was time to share here and maybe get some opinions on places to get a few parts that are needed. Right now it needs a new headliner, I believe new injectors, and the fuel tank valve needs to be cleaned. Suggestions on parts and reputable online shops for these parts would be greatly appreciated.
Right now as it sits it is all original except the battery. It currently has 18,285 miles on the odometer and I don't plan on putting many miles on it during the summer months.
Figured it was time to share here and maybe get some opinions on places to get a few parts that are needed. Right now it needs a new headliner, I believe new injectors, and the fuel tank valve needs to be cleaned. Suggestions on parts and reputable online shops for these parts would be greatly appreciated.
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 1988 IROC Z
Great story and car.
Here are a few recommendations for parts
SouthBay Fuel Injectors...On this site
Clean the Tank valve....it's discontinued
HeadLiner can be had at Classic Industries
Good Luck!
Here are a few recommendations for parts
SouthBay Fuel Injectors...On this site
Clean the Tank valve....it's discontinued
HeadLiner can be had at Classic Industries
Good Luck!
Joined: Dec 2001
Posts: 9,946
Likes: 644
From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: 1988 IROC Z
Congrats! What makes you think that you need new injectors? Your '88 still has the better Bosch injectors and not the later failure prone Multecs.
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Re: 1988 IROC Z
All research that I have done have pointed to worn out or leaky injectors.
Senior Member
iTrader: (2)
Joined: Mar 2014
Posts: 728
Likes: 51
From: South Texas
Car: '89 Iroc Z28-15,100 Original Miles
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Limited Slip, 2.77 Ratio
Re: 1988 IROC Z
When the car sits for a long time it starts right up but with a little white smoke from the exhaust. When sits for a short period of time (a few hours) it takes a few seconds of cranking to start with more white smoke.
All research that I have done have pointed to worn out or leaky injectors.
All research that I have done have pointed to worn out or leaky injectors.
Trending Topics
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Re: 1988 IROC Z
Thank you. My plan was to replace the seals when the new injectors were installed. Maybe I'll just try that and see if the startup issue goes away and attribute it to a bad seals?
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Re: 1988 IROC Z
I was hoping I could do this myself as I simply don't trust people working on something like this.
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Re: 1988 IROC Z
Well, I guess since I'm getting a quite a few better answers than I have in the past I should ask about the fuel tank vent valve.
After the car has been running for some time there will be the occasional "hiss" sound. This happens when the car is turned off (still hot from driving) and sometimes I was able to hear it while at a light. Is it possible that the hissing sound I'm hearing is the valve working properly and releasing the pressure from that tank that has built up with the heat? I can avoid it happening after the car is turned off by slightly unscrewing the gas cap and can hear the rush of air escape.
I apologize for the ignorance. I am new to owning classics, but have been around them my entire life.
After the car has been running for some time there will be the occasional "hiss" sound. This happens when the car is turned off (still hot from driving) and sometimes I was able to hear it while at a light. Is it possible that the hissing sound I'm hearing is the valve working properly and releasing the pressure from that tank that has built up with the heat? I can avoid it happening after the car is turned off by slightly unscrewing the gas cap and can hear the rush of air escape.
I apologize for the ignorance. I am new to owning classics, but have been around them my entire life.
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 1988 IROC Z
In reference to the valve....the hissing you hear is the valve releasing pressure in the tank. There are several threads on this topic about excessive pressure in the tank, boiling fuel during operation on hot days, or just plain pressure build up.
That valve is actually a 2 way valve. It will open around 7 psi to relieve pressure.
If you want to spend the better part of a day reading about it, look up Boiling Gas, Tank pressure, or any other word pertaining to pressure buildup in the tank.
HTH's. Happy reading!
Bob
That valve is actually a 2 way valve. It will open around 7 psi to relieve pressure.
If you want to spend the better part of a day reading about it, look up Boiling Gas, Tank pressure, or any other word pertaining to pressure buildup in the tank.
HTH's. Happy reading!
Bob
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Re: 1988 IROC Z
In reference to the valve....the hissing you hear is the valve releasing pressure in the tank. There are several threads on this topic about excessive pressure in the tank, boiling fuel during operation on hot days, or just plain pressure build up.
That valve is actually a 2 way valve. It will open around 7 psi to relieve pressure.
If you want to spend the better part of a day reading about it, look up Boiling Gas, Tank pressure, or any other word pertaining to pressure buildup in the tank.
HTH's. Happy reading!
Bob
That valve is actually a 2 way valve. It will open around 7 psi to relieve pressure.
If you want to spend the better part of a day reading about it, look up Boiling Gas, Tank pressure, or any other word pertaining to pressure buildup in the tank.
HTH's. Happy reading!
Bob
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 1988 IROC Z
I heard lots of suggestions. If you want to do an experiment, run your tank to empty....find some pure non ethanol gas, fill the tank with it and run it. I have found that the pressure is nowhere near what Ethanol gas causes. I run non ethanol in all mine...and I have no big issue with it. JMO
Member


Joined: Dec 2005
Posts: 175
Likes: 2
From: Shelby,N.C.
Car: 1986 pontiac bonneville
Engine: LB9 305
Transmission: MK6 T5
Axle/Gears: 3.42
Re: 1988 IROC Z
gm at one time though it was a good idea to allow a bit of oil to seep into the valve guides and that it would help prevent wear, but turned out to be a bad idea.
Joined: Dec 2001
Posts: 9,946
Likes: 644
From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: 1988 IROC Z
BTW, what's up with that '79 TA? The shaker says TA 6.6, is it a W72, or just a decal?
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Joined: Dec 2001
Posts: 9,946
Likes: 644
From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 7
Likes: 0
From: Ohio
Car: 1988 IROC-Z
Engine: 5.7
Re: 1988 IROC Z
Apologies for resurrecting an old thread. Quick update on the car; this summer so far I have been pretty busy so I haven't had much free time to work on the car. I was able to wash and strip all the old wax and then buff out quite a bit of swirls and scratches and then wax it again to seal it all back up. Looks much better IMO. I have noticed that the PCV/grommet are leaking a little along with the valve cover gaskets. So, I went ahead and ordered those. Any suggestions on valve stem seals? Want to get some quality ones that the community agrees are solid choices. I did do a quick search and wasn't able to find a easy to follow "how-to" for replacing them at an at home shop. Anyone have any step by step instructions for tucked away?
Thanks!
Thanks!
Thread
Thread Starter
Forum
Replies
Last Post
92 Formula
Convertibles
2
Jan 29, 2006 02:35 PM
Dustin Imports
Transmissions and Drivetrain
5
Jul 19, 2005 12:53 PM







