Cascade Crew

88GTAJim

I am removing the TPI intake to access the plug in the oil pressure port at the back of the engine. The removal seems pretty straight forward and I have everything torn down to the fuel rails.

Questions;

1) Do I have to/should I remove the fuel rails and injectors prior to unbolting the intake. I looks like I have room to get to the torx head bolts but would like to know what you think. Would now be a good time to do some service work on the injectors anyway like new o-rings or something. I know it would be easier to get to the bolts with the rail off, I just don't know what I am getting myself into yet.

2) I am planning to replace the thermostat since it appears impossible to do later and maybe cleaning the EGR. Anything else I should be doing?

Twilightoptics · Posted: Sun Mar 23, 2008 1:56 pm Post subject:

You don't have to take the whole baseplate off to get to it. Removing the plenum should suffice if you really feel you have to.

88GTAJim · Posted: Sun Mar 23, 2008 2:13 pm Post subject:

The plug is really tight and has a 5/16" square that will round off it I continue to try using an open end wrench on it. I need to get a set of vice grips on it to make sure it comes out. It is actually directly under the fastener boss on the rear manifold runner so I can't get to it from above either. Best chance is to pull manifold and get a straight shot at it.

Twilightoptics · Posted: Sun Mar 23, 2008 2:26 pm Post subject:

If you're going for oil pressure. There's an oil pressure port just above the oil filter that might be easier?

88GTAJim · Posted: Sun Mar 23, 2008 2:31 pm Post subject:

The plug from the harness won't reach that far though. I already have everything else off now so I am mainly concerned about whether or not to remove the fuel rail/injectors before unbolting the intake. It doesn't appear to be that big of deal to pull the injectors and put on some new o-rings. Just need some opinions from those that have done this.

Twilightoptics · Posted: Sun Mar 23, 2008 2:38 pm Post subject:

I can't remember if I pull the rails or not. If you can get to the bolts for the intake, all 12, without pulling the rails... then leave the rails in.

chevymad · Posted: Sun Mar 23, 2008 3:00 pm Post subject:

Buy yourself an 8point socket to fit that square plug.

pathology knight · Posted: Tue Mar 25, 2008 4:47 pm Post subject:

you should be fine.

i took my entire tpi system off including intake manifold (i think that's what it's called) and didn't have a problem.

88GTAJim · Posted: Tue Mar 25, 2008 5:00 pm Post subject:

Well, I have decided to pull the injectors and fuel rail. After reading an article on how to replace injectors, it seems pretty easy and I have new o-rings in my gasket set. My local parts store could not come up with some of the gaskets so I had to order them through TPIParts.com. They were the Throttle body gaskets for the water jacket and top plate and the EGR gasket. I couldn't believe they could not source those gaskets. I have also been too busy to get to anything done for the past couple of days and have more planned in the next few days. I guess I'll just wait for gaskets to arrive.

aaron_sK · Posted: Tue Mar 25, 2008 5:47 pm Post subject:

While you're under there, do the throttle body coolant delete, unless your driving way up to the frozen North or something.

88GTAJim · Posted: Tue Mar 25, 2008 7:07 pm Post subject:

iansane · Posted: Tue Mar 25, 2008 8:15 pm Post subject:

88GTAJim · Posted: Tue Mar 25, 2008 8:21 pm Post subject:

iansane · Posted: Tue Mar 25, 2008 9:13 pm Post subject:

I thought they were closed? Did they move or something?

I work at Bruce Titus Chev in north Tacoma.

88GTAJim · Posted: Tue Mar 25, 2008 9:38 pm Post subject:

Can you drop ship? Fuel to get there is kinda pricey if it's just for small stuff.

The GM dealership isn't there anymore, I haven't been by there for a while, but PowerboatsNW has / had a lot there. Their primary store is in Fife.

blue89 · Posted: Wed Mar 26, 2008 8:37 am Post subject:

Heated TB delete FTW!

Hi Jim, welcome to the crew. Wink

91RSVert · Posted: Wed Mar 26, 2008 11:08 am Post subject:

Little Late on this post, ops.

I cant seem to remove the runners w/o loosening up the fuel rail at bit.

Any time the injectors are removed from the intake, new o-rings are recommended.

They do sell square plug sockets. A little costly, but prob less then all the gaskets n labor.

88GTAJim · Posted: Wed Mar 26, 2008 12:21 pm Post subject: