Correct me if I am wrong, but couldn't you just use a harness from a vehicle with a 5.3l/ 4l60e? I didn't think there were any harness differences between the 5.3l and 6.0l?
Type: Posts; User: crzy8mnky
Correct me if I am wrong, but couldn't you just use a harness from a vehicle with a 5.3l/ 4l60e? I didn't think there were any harness differences between the 5.3l and 6.0l?
I do not believe the 0411 is interchangeable with with the connectors you are using. It might be easier to convert your LQ9 into a drive by cable set up and modify your 5.7 vortec harness to work...
I went with braided AN hose with Russel 644120 and 644110 fittings to connect to the fuel rails. They're not a true quick disconnect system, but they're very easy to R&R.
The plugs were physically the same between the LS and Vortec pressure sensors on my engine. The difference being no back up fuel pump power on the LS. I do notice that the pressure reading on my dash...
You can buy 1in setback motor mount plates that you bolt your current mounts to. It's what I am running without any issue.
As for the transmission, it will bolt up, but there will be a bolt hole...
I used the 5.3l flex plate with a spacer when I did a 98 k1500.
My L59 (flex fuel LM7) was a junkyard pull. It cost me less than $300, and I figured even if it was junk, at that price I could part it out and not lose money. The junkyard also gave me the chance to...
Are you sure you don't have a starter relay? That seems really strange to me. The fuel gauge issue should be related to an issue with the level sender itself, and won't affect the engine running. You...
Maybe I missed it, but did your driveshafts work without needing modification? And if you haven't gotten an answer about the boss you trimmed, it looks like it was for the A/C compressor bracket. I...
I don't think the oil or temp sensor connects with the engine harness on the older obs, as they do not on the newer obs. The wires go directly to the instrument panel and the coolant temp for the...
You may want to look into using an E67 ECM with a Trailblazer OS on it. The Trailblazers use the older style class 2 data and this wasn't changed when they started putting in the gen IV engines into...
I think you need a different water pump and under drive puller. Power steering pump should be fine with the 5.3l bracket setup and I believe the tensioner is the same.
The surge of power you feel around 3000 is normal, that's when the ls makes power. What wiring harness did you use with the swap? Are you using a stock tune? Verified 12 volts at the pink wire for...
Have you hooked a gauge up to fuel pressure port on the engine? I don't believe the computer monitors fuel pressure as it's vacuum operated. Also, which MAF did you use? The calibrations are...
I swapped a 2002 5.3L into a 98 K1500. I reused the original 5.7 wiring harness and added wires when needed. I also kept my original transmission. It's not quite finished, but it's about as close as...
If you connect the white wires of the coil and the ignition module and then pull the tach signal wire from the old engine connector into the new connector you will have a tach signal. IIRC the only...
The battery could be at fault if the short is bad enough to not allow enough amps to power everything, but that seems unlikely since it shouldn't be in play when you are driving. Maybe swap it out if...
How much of your old harness have you removed? The tach signal comes from a white wire on a three wire plug that goes into the coil. The fuel gauge signal is a purple wire that comes from the...
Looks like passenger side, mounted on the two bell housing bolts on the side.
I would grab the IAC of your old throttle body and swap it out. Might also be a tune issue, maybe someone fat fingered the idle settings. As for the MAF, if the tune is not calibrated for the...
Idle air controller stuck?
With the 92 you will need to use the wiring harness that came with the 4.8/5.3 to control the engine, along with the computer. You will also need to identify a few wires that will have to be added to...
The two power studs you're pointing two are auxiliary power studs, nothing is there stock. That two wire does look like a ground to me, you can check to see if there is continuity between it and a...
There is .7 ohms resistance between the pcm control wire for injector 6 and injector 8. I disconnected the pcm plug for the injectors and the continuity goes away. Internal fault in the PCM?
Edit:...
Ok I might have found something. I checked the hertz for each of the each injectors on bank 2. Cylinders 2 and 4 were around 4.5 hz when at idle, but 6 and 8 were around 7.5 hz. Is it normal for the...