68 longbed 5.3/4l60e

[tallic68]

The brown truck came today. Yay!! Brought me all the fuel system and some adapters for,stock gauges.





I have a concern. The adapter above the oil filter doesn't look like the ones I've seen here that you guys have been tapping for the stock oil pressure gauge. Dose this mean that my engine had an oil cooler? And if it did where is the return port? how do I plug it? Did 2002 silverados with 5.3's come with oil coolers?

[mcmlxix]

Originally Posted by tallic68

I have a concern. The adapter above the oil filter doesn't look like the ones I've seen here that you guys have been tapping for the stock oil pressure gauge. Dose this mean that my engine had an oil cooler? And if it did where is the return port? how do I plug it? Did 2002 silverados with 5.3's come with oil coolers?

I have the same adapter. I bought it new and ran a 1/8-27 NPT tap through it without having to drill it for threads. (I did have to use a smaller drill bit to have an opening for the oil to reach the sender) Dont over tap the block fitting. What I mean is, the NPT tap gets wider at the top, so if you run the tap all the way in, it wont have the ability to seal against the sender. I think I may have done this but since the motors not in the truck I havent been able to check.... you can find aftermarket billet ones that are already tapped but they're not cheap...

Also, I think this is a C5 Vette style block off plate....

[tallic68]

Is there certain years of trailblazer manifolds that fit? Or any 03-09 will work? And is 80 bucks free shipping a good price?
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[tallic68]

So is there a return I need to plug somewhere?

I thought that only HD and other vehicles had oil coolers. Did they lie to me and say it was out of a silverado. I got it from a truck salvage yard so I wouldn't think it was from a car besides having a truck manifold. And the engine doesn't look altered.
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[ls1nova71]

Originally Posted by tallic68

So is there a return I need to plug somewhere?

I thought that only HD and other vehicles had oil coolers. Did they lie to me and say it was out of a silverado. I got it from a truck salvage yard so I wouldn't think it was from a car besides having a truck manifold. And the engine doesn't look altered.
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There are a couple of different block offs, the one you have is the one most easily drilled and tapped for a sender. If the engine had an oil cooler, there would be two aluminum lines coming off of it, and it looks completely different. The Corvette uses the same piece but it's already drilled and tapped for the oil temp sender, I don't think you have a car engine. You don't need to do anything with what you have unless you're going to use it for your oil pressure gauge.

[tallic68]

Oh so this adapter or block off is not open. It looks like there was a line coming off of it but it is in deed closed. Ok thanks. I thought it was an open port that needed to be closed off or capped. And I need to find the return and cap it as well. But I don't. Thanks for clearing it up for me. Thanks.

Anybody know about the file gauges? Is there a way to adapt the new gauge to old sender? I've search but found only old pOsts. Trying not to change the sender I just installed.
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[ls1nova71]

Originally Posted by tallic68

Anybody know about the file gauges? Is there a way to adapt the new gauge to old sender? I've search but found only old pOsts. Trying not to change the sender I just installed.

I'm not sure the new gauge will work with the old sender, but have you called Autometer? They would probably be able to tell you for sure.

[tallic68]

Need some help with the new tank and sending unit.

I installed a brothers blazer tank and sending unit. Filled it about 4'gallons at home. Then drove to gas station and put 6 gallons in drove it around and then filled it. Like there is gas at gas cap level full. The gauge reads 7/8 full. When I accel it goes to 3/4. When I break it goes to full. So I drove it till it was 1/8 tank. Only got 120 miles. Knew I got bad gas mileage but not that bad. Filled the tank and it popped of at 10.4 gallons. Back to seeing fuel at the gas cap level. Still at 7/8 tank and 3/4 accel and full while breaking. I'm not to worried about the slosh but can you think of why it would be showing 1/8 tank with 10 gallons still in it. Blazer tanks are 21 gallons right so if At the second fill up I put 10 gallons in it there would have been 11 gallons still in it even though it showed 1/8.

With the old tank E was E. it did go above full when I would fill the tank. when I installed the new tank and it didn't go above full I thought changing the sender fixed the problem but now I have a problem with E not being E.

Grounded the tan wire and it went to just below E. tan wire open fuel needle goes to above full to about 3 o'clock position.

Ay suggestions?
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[ls1nova71]

Ok, I'm a little confused. Does it read 1/8 full or 7/8 full? You said it both ways. You didn't bend the float arm installing it did you?

[tallic68]

When it's phisically full it reads 7/8.
When it read 1/8 of a tank I filled it and it only took 10 gallons.
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[ls1nova71]

Originally Posted by tallic68

When it's phisically full it reads 7/8.
When it read 1/8 of a tank I filled it and it only took 10 gallons.
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Sounds like the float arm is bent up too much, you need to pull the sender out and slightly bend the float arm down, so that when the float is at the very top of the tank (floating on top of a full tank of fuel), the the resistor part of the sender is at the top also. It sounds like the float is floating at the top, but the resistor part isn't at the end. Hope this makes sense.

[tallic68]

It dose thank you.
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[tallic68]

How do I trouble shoot code P0122. Sensor a low voltage on my DbW.
Motor runs fine so far but the only code is P0122. No throttle response. Can this be oahmed out or what. How do i track this down.

Is this problem only between the pedal and the TAC or can it be in the Barnes?

I post a write up when it's in and running
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[clinebarger]

Originally Posted by tallic68

How do I trouble shoot code P0122. Sensor a low voltage on my DbW.
Motor runs fine so far but the only code is P0122. No throttle response. Can this be oahmed out or what. How do i track this down.

Is this problem only between the pedal and the TAC or can it be in the Barnes?

I post a write up when it's in and running
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Pull the split loom back at the throttle body connector....Pull each wire to test them for being broken inside the insulation, VERY common issue on 03-07 DBW trottle bodies.

[tallic68]

From throttle body to what? To tac? To pedal? To PCM? There is five wires coming out of the tps.

Engine starts awesome. Idols a little high but I'm not letting it run long enough to get out of high idle.

I get the P0122 throttle/pedal position sensor A low voltage. With tac connected or not and with pedal connected or not.

I'm hoping current performance did quality tests prior to sending the harness out.
I'm enclined to think its a sensor on the engine to tac or pedal more than the harness.
How do I check the tps?
How do I check the pedal tps?

Other than the P0122 code, can't wait to get this thing on the road.


Thanks everyone for your help, really thanks.
Mike
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[ls1nova71]

Originally Posted by tallic68

From throttle body to what? To tac? To pedal? To PCM? There is five wires coming out of the tps.

Generally it's in the PCM wiring to the throttle body, I've personally never seen the harness between the pedal and TAC be bad, but there's always a chance. Also it's usually the '03 and up, yu don't see alot of the 2000-2002 like you have, but still could be a problem. You'll need to ohm the wires from the TAC plug to the PCM plug while moving the wires around to see if the continuity goes away. To be sure this isn't an incompatibility problem, you do have the TAC that came with your engine, right?

[68GMCCustom]

I know of at least one configuration that dbw was available in '01...The 2001 GMC Sierra C3 which came factory with full time AWD and the 325hp/370tq 6.0L LQ4 vin "U" as I recall.....would guess that the '02 Sierra Denali was config the same way...probably '01 and '02 Yukon Denali's also. Caddy's all had LQ9 back then, and the AWD LQ9 Silverado SS didn't appear till '03?

I miss my C3 terribly!

and BTW....one of the start up issues on my LSx swap was no throttle movement, just idle. Turned out to be a bad pedal assembly.

[truckdude239]

i'd recommend swaping that fram filter for another better style filter

[tallic68]

Fram filter cam on the motor from the junk yard. I'm using a bosh filter. Do you have a recommendation?
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[truckdude239]

bosh is fine anything but fram, i run mostly puraltor filters in my shop, but wix, bosh purator, mobil 1, k and n filters are great

[Daaaanz67]

That air box will fit. Here's minenot trying to hijack your build just letting you know it will work save your money
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[tallic68]

Clean sir. Very clean. Do you have anymore info in how you installed the box? Did you modify it at all?
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[ls1nova71]

Originally Posted by tallic68

Clean sir. Very clean. Do you have anymore info in how you installed the box? Did you modify it at all?
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It helps if you get the bracket that the air box mounts to. You can fab some brackets to hold it to the inner fender, then the air box just kind of snaps in place. At least that's the way I do it.

[Daaaanz67]

That's nice work nova 71. I didn't get that elaborate with my install but it was clean and simple also work well for me I'll try to get pictures of the pieces that i made tomorrow to mount the box tomorrow.
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[tallic68]

Well, it's in. Running and driving. Now I just have to deal with exhaust. Unfortunately the motor didn't come with flanges. So now I'm trying to find some.




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