Thanks so much for the info regarding the 4.3 engine. I really like to see your video on repainting of your chey truck, I have a 96 short bed I'm looking to repaint.

NOTORIOUS on the 4.3 - carbon trailing. There was a service bulletin yrs ago that says to TAKE OUT the vent screen b/c there's NOT enough ventilation to the inside of the distrutor. I also changed the crappy plastic distributor to an all aluminum. HUGE difference. Had a vacumm leak-same situation as you-but at the tee where it leads down to the fender tank. Hose was disconnected. AND the dang thing died while driving due to a CPS (crankshaft position sensor) fault. There's washers that come with those-make SURE it's in completely and NOT getting scratched on the end by the crankshaft. Other than that, I've got a 03 S10 w/ just over 500k miles on it now and STILL runs like a champ. Best thing about the 4.3 - SOOOOOOOOOOOOOO easy to work on w/o all the computer crap like today. Taking it down to the frame and TOTALLY restoring it cuz We've been to hell and back for over 20 yrs and She's gonna give Me ANOTHER 20. Nice vdo!

4.3 Tip to share. I had a strange stalling, skip issue and no codes. Couldn't figure it out. Thought it was the fuel pump. With the engine running I pressed on wires and hoses looking for a vaccuum leak.. I pressed a wire and the engine shut off. Magic moment. The coolant sensor connector plastic stay tab had broken off. The coolant sensor plug was half in half out. I inserted and it started right up. I removed it and it stalled.. crazy issue to locate but I wanted to share with others.

This is the best 4.3L diagnostic I've seen! Like you I can't buy it, so I build it! Your description is exactly what my wife's truck was doing. Engine out now, spun rod bearing but you can bet I'm going to follow your lead. Thanks!

I’m pretty sure the vacuum pod is needed to help in locking in the front diff 4x4

My Dad's '03 Blazer LS is having a similar misfire issue. I was going to replace the spark plugs/wires & dist. cap for him, but I'm glad I came across your videos, very helpful.. And by the way, Merry Christmas ahead of time!

I do agree with, helping in teaching for the greater good for all. Thank you for your diligence and tenacity in life .🏞️👍

Love your attitude & way of life man!!! Awesome wisdom for the diy ers out here like us, thanks 4 all u do 4 us looking for the correct info!!! Merry Christmas!!!! From Russellville,Arkansas

Ty for all the knowledge 🙏

How did you plug the vacuum canister?

Great information. Thanks for taking the time because I'm preparing to diagnose my 98 blazer and I need all the help I can get.

Happy Thanksgiving and a Merry Christmas my friend. God bless.

Thank You and God Bless.

God Bless You Sir you have no idea how much you just helped me!

Thx' great job. Very informative vid!

where did you get the mass air flow and what brand ??

just wanted to say (thank you) for doing this video i have a 2001 chevy blazer LT 4.3 with this problem too

Yep! I have an 02' Blazer ZR2 4.3 I've had this issue, moisture many times under my cap or a new cracked cap. It will run great for about a mile then start misfiring, in my cases. I also Replaced the distributor, rotor, everything. Wires, plugs, ECM, coil, etc. She's always perred like a kitten ever since. I was starting to get poor mileage & changed out all 3 of my 02 Sensors & now I get 16mpg in town. The sticker mpg for 2002! She's been just a great runner. Got a new HD Tranny rebuild also 4 years ago. The stock Sunshields snap easily on these..

On my 2000 Blazer I got a P0300 code changed the fuel filter, distributor cap and rotor, about to change the ignition coil and wires to see if that fixes the code...if not I'm change the egr valve to see if it clears the code.. that should cover just about everything. Tach 600 warm 900 cold rpms don't jump....gas gauge is accurate that should cut out the fuel pump....we'll see what happens. I do the work I can do myself because shop costs get too expensive.

Nice video. I just bought two of these Low miles and no rust on either but the second one seems to have every possible issue, including random misfire at 2600 rpm.. I was hoping it was the EGR. lol

Thanks for adding this video it help me a lot I did all the work my self by watching ur video and save my self a expensive mechanic work 🤘👍

Heck ya Merry Christmas! Thanks for the good info.

Merry Christmas and thanks for telling us about the yt episode -

Thanks, been fighting this miss for 2 years...and several caps, rotors, MAF, Spider., Distrbutor...on and on F... GM.

@hectorornelas5986

3 жыл бұрын

Did you ever get it figured out?

@Jaexrobbb

Жыл бұрын

Please let me know you figured it out

I have a 2003 s10 zr2 I just purchased sight unseen. I sent my wife and friend to go pick it up. Long story short it dosen't run the best. Runs ruff on the lower rpms. Should I start with the distributor.? I do not have a scan tool.

Their 300000 ish motors goodness

P0300 is driving me crazy

I have a 03 astro 4.3 Once a year I replace the distributor cap & rotor. And keep a cheap spare set in my van. Tried everything.. vent screens in and out, new distributor.. sealed around cap, dielectric grease inside etc.. nothing helped. I use the $60 Mallory or accell cap with $20 rotor. This cap has copper contacts. Seems to last longer

I was just watching your series because I have a 1995 Blazer. Now I've subscribed to your channel.... just to make this coming Christmas a little merrier.

Vacuum also affects your braking / brake booster and if your brake booster goes bad, your engine will not idle.

My cousin, calls that CRS. Can’t remember 💩

Thank you you saved me thousands Of dollars that is what my truck was doing plus the crankshaft position senser went out

I'm late to the party, thank you for the video. AND thank you for saying Merry Christmas!

Thank you for the videos helps a lot!!!

Need more people like you. Thank you 🙏

Distributer cap and rotor

I’m getting very bad run idling just like this when cold start but once warms up, Ryan’s pretty pretty good getting misfire codes. I’m wondering if you unplug the wire into the maf sensor should it stay running and does that mean it’s bad or should it stop running in that means it’s good

Awesome video and I love what you said about KZread as far as making money, you do this to help others and that’s a rarity these days as I’ve always worked on my own vehicles because I can’t afford to pay a mechanic , also I take pride in doing my own repairs knowing it’s done right. BTW, my 02 blazer ZR2 is that same dark green as yours, personally I love that color and haven’t seen many green ones. I did discover my 02 is EGR delete after searching my entire engine and doing some research online that GM did delete the egr starting in 02, it’s strange because some 02”s have them, I’m stoked mine doesn’t. Such a bad idea recirculating carbon particles back into your motor.

Dude, I devoted to your videos and dedicating myself to bring back my lean engine!

Another problem with the distributor is its actually too airtight believe it or not. There is ozone created inside the distributor cap as the rotor completes the circuit with the distributor cap contacts. There is a small vent with a screen in the base of the distributor that can get clogged with debris. Just punch the screen out so the ozone can escape.

thank you for the info. i have a gmc sonoma 4.3. spits when the weather is cold. code says mass airflow sensor. crank sensor. replaced crank sensor, got better but sill spits when weather is cold. will replace mass sensor and try that. this 4.3 has 286 thousand miles on it.thanks again.

That truck i've seen it customized on the web with front flames green and black I think. I truly liked the look.

Thank you very informative

Thank you ,, what year is your vehicle?

what air flow module is it? you said it was lifetime warranty and not made in USA.

You want something you gotta build? It sounds like me,

I have a 97 4.3 s10 that misses at acceleration but idols good and runs good at higher rpm’s. I’ve replaced everything but the egr valve

Lmao they cut your video for saying Merry Christmas lmao. that's wild! 🤣 Good video though. I have a old 92 Astro 4.3. It was runin lean too. Changed the EGR and gonna be fixing the plenum real soon. Will probably start on it today.

Thanks for taking the time to make this-Ive got a 2000 my sister was going to take to the scrap yard😆bit by bit Im learning to fix it as i go-it aint fancy but it gets me where i need to go😉

KZread forgot that we live in a free country!

I get a misfire code on cylinder 1. I changed the cap, rotor , plugs and wires. Bank 1 is running high over 10. Could it be the spider ? Thanks

4:45 actually, the MAF just measure the amount of air coming in. As for air temperature, there is a separate sensor that detects temperature.

@jesusalonso8287

3 жыл бұрын

Which one is it my truck is having problems with it

Merry Christmas you are a good man thanks for sharing 👍

My minds the same way. & its frustrating

Merry Christmas and Happy Independence day! god bless brother*

Thanks for the video, bro. U-toob can cram it.

Ty for the video!

Thats right keep on rockin brother!!!!!!!

Good explanation. U got my sub

my light comes on and I have 2 cylinders 1&2 miss firing

Thank u for your help

I have a 97 Gmc Sonoma with a vortec engine and I had a misfire yesterday but I noticed that the oil pressure was very high? Any ideas on what I need to do?

I have 95 s10 blazer that when it's cold it seems like it's missing soon as it warms up it will start popping through the exhaust were wold I start it got new plugs wires cap button altnator was bad changed it nothing seems be helping could you give me advice thanks

My 02 chevy s10 4.3 has a p0301 code pop up. What can it be? I changed my spark plugs, wires, and ignition coil already. Please help

My 95 astro has good pressure n spark .wont start. Started running like it bad gas .(chugging) for two miles then stoped starting .turns over

fyi to stop the door dinging temporarily you can turn the door lock to closed … and then pull it back out later to close the door

Mine misses when its cold! once it runs for1-2 minutes its fine

My 4.3 does something similar, but it’s after I’ve been driving for 10-15 minutes. I’m not sure what a misfire would feel like, but my truck basically turns off. I can still give it gas but it doesn’t go anywhere. Sometimes it completely shuts off but otherwise it’ll start up again after 5 seconds or so of coasting. I replaced the fuel filter yesterday and I’m still having the problem. Some people are saying it’s the fuel pump, injectors, relays and a couple other things. Any help would be appreciated! It’s a 1997 Chevy s10 4.3 vortec v6. Has an automatic transmission and 58,000 miles

@arnoldchildress8053

3 жыл бұрын

Sounds like you have a bad coil I had the same problem

Dont touch the sensors with anything...

My 4.3 has a different intake. Its the Silverado, i changed plus wires distributor cap and button. Started her up she was idling fine, i gave her some gas let her idle started to put tools away and she jus vvvvvROOOOOMMM up to 3,500 hooked it up to a smoker cant find a vacuum leak

@ethanielgriggs9663

2 жыл бұрын

Going to try this

Honest down to earth 🌍 man 👨

Late but Merry Christmas to you to❤

I'm having a problem with my 2000 4.3 plugs wires and cap and botton replaced and at wide open throttel it gets a bad miss

Love your videos, very helpful. Merry Christmas

What scan tool did you have ?

Merry Christmas man. Little early

On the opening monologue. Damn right me too.!

Get an a.c Delco and rotor

Thank you for that

Merry Christmas and thanks

MERRY CHRISTMAS

Absolutely my friend just a red blooded hard working 7 day a week god fearing country loving man here as well. MARRY CHRISTMAS as well my friend. You are truly helping more than you know! Thanks God bless and merry Christmas as well!

Thank you again, and Hell yes Merry Christmas 🎄

MERRY CHRISTMAS!

Merry f****** Christmas

Merry Christmas.

EVER SINCE BIDEN GETTING INTO OFFICE THERE HAVE BEEN PROBLEMS AND ISSUES WITH FREE SPEECH. MERRY 🎄 CHRISTMAS BRO. GREAT VIDEO.

Crc maf cleaner

Awesome 👏

4wd uses vacuum also

Merry Christmas we’ll chat sometime I got a 4.3 driving me crazy peace out

If u build it, they will come .

Merry Christmas

Never change transmission fluid. 372k same fluid & filter.

@blaisex22

4 жыл бұрын

2004 Avalanche 286,000 miles with no problems. Trans did die but only after a couple weeks of towing a bobcat around behind the poor half ton truck.

Mr. Rush....what year is this 4.3 ? 1996 ?

put your vids on rumble and you won't have to deal with the censorship issue

Hey you should get ahold of me please.... i have the same motor that i can't figure out to save my life

The inside of my cap has blue burn marks in dide

I have a 2001 chevy blazer 4.3 v6 that has had the front Cat removed and the rear cat gutted? I have done everything to try to get it to run good put $$$ into it spider injectors, tune up, Maf sensor water pump,new distributor etc... I also have 02 sensors(have not installed yet) i bought since my code reader said bank one was bad . It still runs very rough I just want to get it running good sell... Any suggestions? Thanks for your time..

@roadstar499

4 жыл бұрын

Also changed fuel filer and did pressure text..has over 50 psi..thax

@1ezeinda

4 жыл бұрын

Change the spark plugs in the wires. Go with ACDelco. You can get them on Amazon for cheap. Gap them properly. Boom Chevy Thunder again.

@1ezeinda

4 жыл бұрын

That was supposed to read change the spark plugs and the wires. LOL. Merry Christmas everyone. Might be time for a new distributor cap and a catalytic converter or two as well.

@roadstar499

4 жыл бұрын

@@1ezeinda I did all that...its gone...I think it was a bad computer...just keep coming up with different codes all the rime...the first two blazers I owned never gave me issues...this was a piece of shit that I never should of bought...

@floydgines5838

4 жыл бұрын

he sounds lke johnny cash!

What do u think it could be