No problem!

Yeah I need to change the years in the title. I believe the vortec engines with spider injectors have to have a scanner to change timing

Yes, it is not fun at all. That special distributor tool helps out a lot. It would be nice if the bolt wasn't like 2 inches long though

Whoever designed that doesn’t work on their own truck, guaranteed.

You can buy a timing tab from most parts stores. They bolt to the timing chain cover with 2 bolts usually. Its not THAT hard to do but it is kind of difficult. You should be able to do it without taking anything else off. What the old school guys would do is just listen to the engine when timing it. Turn the distributor until it started to bog down or not run right, then turn it the other way until it did the same thing, then turn it the other way again until you're about in the middle, between the two spots it started to not run right. That should get you close enough. For fine tuning though you need a timing tab.

@@black91silverado82 I am one of those old school guys. Yeah I've done it that way before. This has the plastic timing cover and cs. Ànd all kinds of shit all around it. No clear pathway to any of the cover bolts. Still don't like doing it by ear. Got it close enough now it starts right up and shuts right off with no run on. I carb swapped my 2000 Tahoe and my timing light has the dial back feature on it so I know exactly how much timing I'm advancing or regarding just very difficult to see that single notch with all that crap in the way. Thanks for the replies

@@shanemcclaran3012 No problem! On my 91 I had a chrome aftermarket timing cover. I was able to take out the 2 bolts for the timing tab basically by feel because you couldn't really see anything.. and that was a 2wd truck. My 95, which is the one in the video, is 4x4 and it has a lot more in the way. Not sure id be able to change the timing tab on it without removing stuff

When you set your timing with that wire unplugged, that is your initial timing. When you plug the wire in, the computer takes over and advances it so it will be off from where you had it before you plugged the wire back in. Everything should be okay as long as it's still running good

@@black91silverado82what it I set timing on my truck with it plugged in ? I get a back fire when I slam the pedal to the ground . But if I’m on the highway and slam it it’s fine ?

Did you figure this out??

No I never did been driving it this way all I did was adjust it while still plugged in and cranked the bolt tight it back fires at 75 mph but runs ok in yown

​​@@oliverindustries2917back firing is normally a lean issue. Higher speed not getting enough fuel? Id get my injectors cleaned and check fuel pressure Truck auto advances about 8 to 12 degrees . Every degree the wrong way is about 1/2 mpg fuel economy, so if your timing is way out, you will know cause your milage is awful. My timing was out and distributor cap bad. I was at 8 mpg, now 11mpg

@@oliverindustries2917mine back fires in the city when I slam the pedal to the ground but drives fine in the high way if i do the same .

Unfortunately no. I believe on the vortec engines you have to use a scan tool to adjust timing since it uses a cam sensor

@@black91silverado82 so there is no other way to time it at all?

@@eligames3794 you could remove the distributor and rotate the engine over so cylinder #1 is at top dead center on compression stroke. Then put the distributor back in with the rotor pointing towards #1 cylinder. For any fine tuning you will need a scan tool. Im not sure if this will throw any sort of code though on a vortec.

With that tan/black wire unplugged it gets rid of the timing advance on your distributor so it allows you to set base timing. I would guess that your base timing is not set right and you need to adjust your distributor with that wire unplugged and then plug it back in once you're done. Other than that it could need a tune up maybe.

@@black91silverado82 What exactly I said still states idle timing is 0° with the tan /blk wire "DISCONNECTED" surging b.s. starts fluctuating r.p.m. pluged in B.S. STOPS steady R.P.M.

@@black91silverado82 the vechicle had a major tune up also it's a pain in the ass how nothing any where has not had this happen exactly S.O.B. chevrolet

@@repeatagain1789 well I haven't heard of that one yet, not sure why it would be doing that if timing is set correctly. Unless it bad something to do with the distributor or computer

EGR VALVE

This is for setting the base timing, then the computer takes over with the connector plugged in and will set the advance as you drive.

What did I not show in this? I thought I covered everything.

Your good some can't understand normal thinking

You did a good job, except you cannot adjust the timing on 95 and up port injection