bought a 1999 Suburban 1500

[clinebarger]

Hit it some more today.

Battery cables are done, 6 gauge to the Alternator, Not 4 gauge like I posted.

Installed the radiator & found the Duralast lower hose doesn't fit, Ordered a OE GM one (Near $100).....Packed it in cause I'm tired of working on this thing

 

[clinebarger]

She's up & running. Ran it at 1800 rpm for about 20 minutes for initial break-in....Had my big fan on the radiator/grille the whole time as I haven't installed the fan & shroud yet, Ran 210° once the thermostat opened.

Set a P1345, Cam-Crank Correlation. Offset was fairly close at -8°. Advanced the distributor so the offset was at 0°, Cleared the DTC's & performed a Cam-Crank relearn procedure.

Haven't replaced the front O2's yet, But the 27 year old original AC sensors perform near flawlessly. Fuel Trims are hovering right around Zero or 128 on the Block Learn & Integrator (Yes, The PCM still has the legacy fuel trim data )

Went on a short test drive, Runs good, Transmission shifts great. Didn't go to far as I didn't want to get stuck in traffic with no cooling fan.

Still waiting on the OE lower radiator hose & want to knock out any front end work before the shroud is installed.

This was after it sat for 4-5 hours, She bust's right off....Love the Vette/Denso starter!!

 

[clinebarger]

 

[Lawnman23]

Fuel Trims are hovering right around Zero or 128 on the Block Learn & Integrator (Yes, The PCM still has the legacy fuel trim data )

Perhaps I’m dense, 0 or 128 is good??

Also, what is the BLI you mentioned? Never heard of that before.

 

[clinebarger]

Perhaps I’m dense, 0 or 128 is good??

Also, what is the BLI you mentioned? Never heard of that before.

Block Learn is the equivalent to Long Term Fuel Trims
Integrator is the equivalent to Short Term Fuel Trims

They both use a 0-255 scale with 128 being center.

All OBD1 GM's used it, Then GM slowly phased it out after OBD2.....So mid to late 90's GM's can have both.

 

[Lawnman23]

Block Learn is the equivalent to Long Term Fuel Trims
Integrator is the equivalent to Short Term Fuel Trims

They both use a 0-255 scale with 128 being center.

All OBD1 GM's used it, Then GM slowly phased it out after OBD2.....So mid to late 90's GM's can have both.

Thanks for that, I learned something new.

 

[clinebarger]

Got the OE lower hose on, Sending the junk Duralast back to AutoZone.

Gates Fleetrunner belt, New OE belt tensioner showed up but it's 100° & I called it a day.

 

[gregk24]

We grew up in one of these! Ours was a GMC with leather. Good find.

 

[clinebarger]

A/C is up & running, Main blower motor was cooked, Still the factory one. Power wire terminal was burnt pretty good so I crimped on new terminals on the power & ground side, They are Packard 56-Series & I have the factory style crimp tools.

Had Autozone deliver a motor.....SMP-Unimotor made in Canada. Runs quiet & seems balanced well.

Refrigerant is low, No signs of leaks & both service port caps are in place. Probably could've just topped it off but decided to just evacuate the system, High side service port, Low side Schrader, Deep vacuum & charge it with fresh DuPont 134a. Ended up with 45/250 pressures at full weight.