Old wrench ?

Greetings all. Today 103degrees waited 4 sun to go down. Earler i disconnected the "computer" to check connections looked good. Fired up noticeable improvement. Dug out the old OTC obd1 scanner. Data strean map volts +- .5 volt. Injector pulse kina bouncy computer compensating. So i ran it at 1500 rpm for 30 40 minutes. Very hot inside a van. ? . the map volts settled +- .2. Injector pulse fair ly steady. She is puuuring now??. My conclusion is super low miles61000 (500) last year. The old girl was carboned up particularly on intake valves. Thanks 2 all gm truckers who replied.

'll MThanks so much for replies and help. Tomorrow. I will check tbi spray. And a good drive. I will keep alll posted. Fyi. I am having problems with profile as. I whave no face nor do i tweet

I could see it if you were pulling a load. For daily driver ??? . The 90s were about corprate fuel economy numbers and emissions . If its a 4l60 maybe a trans shift kit would improve shift pattern and power .

Anybody know of a good way to see tbi spray pattern

Thanks 4 reply. I replaced cap rotor wires plugs. Low milage 61000...500 last year. Just bought it. Kinda think its a dribiling injector. Or distibuter pickup. It had the corrosion virus on the coil wire to cap. Im going to give it a good freeway run tomorrow may be carbon on valves. Mite have to dig out more diagnostic stuff .

Greetings all. I have a1992 g3500 5.7. At idle and steady rpm she runs ok but has slight misfires not any one cylinder kinda like popcorn popping . Could it be a dripping injector (tbi)? 61000 miles. Fresh fuel . Good tune up. Whats the best way to see tbi spray pattern?

Greetings. I believe the carrier split is 4.11 check some web vendors. If memory correct. New gears need pinion depth shiming with a tool and measuring. Used gears have shims allreay set and on pinion. You will need carrier shims to set backlash. Just a new crush sleve done it b4. Have you tried manually shifting the trans to see if acceleration improves.. Are your tires taller than stock? Lowering overall ratio.?

Greetings Sanchez 85. That looks like a R4 compressor. Changed a lot of them they dont really have an oil reservoir like most ac compressors. They get oil carried in the freon A 134 convert uses pag oil r12 used mineral oil they dont mix the mineral oil just parks in the system and doesnt move. There is a chance the R4 will be under lubed. If you have the system open again replace accumulater add several ounces of pag oil. Farmer vacuum pump if system empty= power brake hose. ?