EGR valve troubleshoot and replacement on a 5.7 TBI

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  • Опубліковано 27 сер 2024

КОМЕНТАРІ • 113

  • @jamesmumford774
    @jamesmumford774 3 роки тому +6

    Up to 3/4 throttle the computer compensates for the unwanted exhaust gas entering the mixture through the stuck open EGR. After 3/4 throttle the computer goes into open loop preset fuel mixture. The EGR is supposed to be closed at this point. With it stuck open, the exhaust gas was killing your power. Great video with solid information! Gotta love those old trucks. Easy to work on and basically run forever, using cheap plentiful parts.

    • @zephead4835
      @zephead4835 3 роки тому

      Question could a clogged EGR valve send a no start signal to the ECM I'm getting good spark good fuel but my injectors won't fire your thoughts?

    • @jamesmumford774
      @jamesmumford774 3 роки тому +2

      @@zephead4835 I don’t think a clogged EGR will trigger a no start condition. When I first got my 89 Silverado, it had been sitting for years. Nothing I tried could get it to start. After many new parts, including fuel tank, pump, sending unit and gas filter, nothing. It would run with starter fluid, or gas put directly down the throttle body, then die when it ran out. Turned out to be clogged injectors. Ethanol in gasoline plays havoc with fuel systems when sitting for prolong periods. I blew out my injectors using a 9v battery to trip them open, while squirting injector/carb cleaner through the injectors. Use wires with connectors, so as not to allow sparks and carb spray to mix! It fired right up after doing this. A few milligrams of powdery residue caused me a lot of trouble! You might also check your signal to your injectors with a noid light, or a volt meter to be sure they are being triggered.

  • @thedolphinDog
    @thedolphinDog 5 років тому +11

    Background music was perfect for a awesome instructional video. Thank you...THUMBS UP

  • @javionbuffington
    @javionbuffington 3 роки тому +4

    I changed parts for 2 weeks avoiding this part due to its placement but thanks to you and the description! 15 mins fixed. (Still couldn’t get it as tight as I’d like

    • @Clamjammer
      @Clamjammer 3 роки тому +1

      What problem were you trying to chase down? My truck runs ok when cold then runs like shit when it warms up. Misfiring like crazy

    • @bryarmasingale61
      @bryarmasingale61 Рік тому

      @@Clamjammer I’m having the same issue as you and can’t figure it out, did you find a fix for yours?

    • @princetchalla2441
      @princetchalla2441 Рік тому +1

      @@bryarmasingale61 I recommend you use an OBDII reader to see if there are any trouble codes. If it’s an earlier model of the c/k trucks and uses OBD1 try using a paper clip to connect the two top right terminals and it will flash any engine codes repeatedly. Codes will be stored for a long time (maintenance manual says it’ll keep them unless you’ve started up the engine 50 times without activating the same problem) so as long as you can turn the key to the on position without starting it you won’t risk doing any more damage to any parts while you search for the problem electrically. Usually with my fuel injected truck it’ll read code #12 three times, then any other codes will flash three times and repeat endlessly after code #12 until I remove the paper clip. This has slight changes for diesel, carbureted engines, and later models after 1995 as well as 4L60E/4L80E transmissions though. Some sensors that malfunction can be detected by the ECM, but they won’t necessarily stop the vehicle from running as the ecm uses presets to limp back home. So far one code I had was #34, but after replacing a MAP sensor my truck has run better at idle. Codes don’t always get fixed by just replacing the sensor though, like that code could’ve been caused by a clogged filter or loose vacuum line, but it’s a way to narrow things down. Good luck!

  • @mediakingztelevision
    @mediakingztelevision 3 роки тому +5

    IVE changed everything in my suburban but the EGR valve. hopefully that fixes the issues i have as well

  • @aronkaspar6369
    @aronkaspar6369 5 місяців тому

    They just don't make trucks like this anymore. 90 percent of the jobs you can do yourself like this. Great video

  • @careybarbee6677
    @careybarbee6677 5 років тому +5

    Great video. Pulled mine off after watching this and its shot!

  • @williamdjerf6291
    @williamdjerf6291 5 років тому +3

    Hey Bro. Have the same year truck, same exact symptoms. After a full tune up and cat bypass this is my next attempt. Truly believe this is it. Thanks!

    • @blowcoal
      @blowcoal  5 років тому +1

      William Djerf good luck!

    • @mr.schwartz2090
      @mr.schwartz2090 3 роки тому +1

      @Carlos Jimenez check Map sensor?

  • @kimbennett9244
    @kimbennett9244 3 роки тому +3

    Thank you! This was so helpful! I’m about to replace the EGR on my ‘89 gmc suburban r1500! I’ve done that plugs & hopefully this will do the trick on the stalling/hesitation issue!

    • @salduran6768
      @salduran6768 2 роки тому +3

      Did the new egr help with hesitation?

    • @JCenteno24
      @JCenteno24 2 роки тому +1

      Yeah did that help having that same problem. About to do it but I would like to know if that worked for you

    • @ashdav6201
      @ashdav6201 10 місяців тому

      I just did the egr I’ve done full tune up fuel filter the air valve on throttle body and pcv valve still having same issue wtf could it be

  • @CNGaming101
    @CNGaming101 4 роки тому +5

    Half inch. Got it. Thanks lol. Nice tip for testing if diaphragm is good still also

  • @jessemccauleyii3012
    @jessemccauleyii3012 4 роки тому +7

    This helped me out a lot!! Not all heros wear capes

  • @avalero13
    @avalero13 3 роки тому +3

    Oh geez rip my ears in headphones w full volume when the turbo spooled opening your vid.

    • @blowcoal
      @blowcoal  3 роки тому

      😆 sorry man

    • @sLitH3rsCS
      @sLitH3rsCS 2 роки тому

      Dislike on vid just for wrecking my right ear

  • @pcdubya
    @pcdubya Рік тому +1

    Just changed one in my 94' 2 dr yukon along with the AIC. This is a spare truck and check engine light has been on since 05'. The EGR was totally shot and clogged up. The truck ran fine but idled about 11-1200 while sitting and occasionally stumbled at a stoplight. Not a ton of difference but does idle down to 900 and no stumble, check engine light still comes on. 214k on mine

    • @Why-ct3gv
      @Why-ct3gv 9 місяців тому

      I have a 2 door Yukon as well. And it feels like it wants to die on me at a stop sign or traffic light stop

    • @pcdubya
      @pcdubya 9 місяців тому +1

      @@Why-ct3gv Have you checked the spark plugs.

  • @mikeholley4488
    @mikeholley4488 3 роки тому +1

    BWD -boerg warner is awesome for supplying every needed gasket.

  • @jonglenn5285
    @jonglenn5285 3 роки тому +1

    Thanks for video saved me 80 bucks

  • @ashdav6201
    @ashdav6201 10 місяців тому +1

    I’m having the same issue with my truck. I’ve changed so much shit on it and it keeps not fixing the problem so I’m gonna try this next, but the way you described it in the beginning of the video sounds exactly like what I’m going through.

    • @ashdav6201
      @ashdav6201 10 місяців тому

      Put the egr on still doin same shit

    • @DonavinMariani-s1e
      @DonavinMariani-s1e Місяць тому

      @@ashdav6201stop buying stuff. You gotta run test on everything. Even new parts can come broken. Save yourself time and money and test.

  • @sergiomalacarabenavides26
    @sergiomalacarabenavides26 5 років тому +7

    Muy buen video, bien explicado, suscrito desde hoy! Saludos de monterrey n.l. mexico

  • @struckync
    @struckync 2 роки тому +2

    i took a 1/2 wrench and bent the closed end on a vise just slightly. used a hammer to tap tight.
    that back bolt is a pain in the ass.

  • @lowellirish
    @lowellirish 8 місяців тому +1

    349,252 mi?!!! C'MON!!
    Mine has 219,000! Amazing😊❤ I'm glad you showed this video. I'll replace it tomorrow along with MAP

  • @brenonwhittington2019
    @brenonwhittington2019 5 років тому +10

    349k on the dash hell yeah brother. leter rip tater chip.

  • @Teenagewasteland1000
    @Teenagewasteland1000 3 роки тому +2

    I think my EGR was messing up. Major popping exhaust. Got a new one off rock auto. And it leaks. Sprayed the old one to living hell with carb cleaner and it isn’t as bad

  • @Mrbooboo1972
    @Mrbooboo1972 2 роки тому +1

    I probably would use a vacuum to suck up some of the dirt n crud, plus when you scrape the old crud off it would get sucked into the vacuum. Still very gd video Thank You again. Subbed.

  • @NamesReed
    @NamesReed 5 років тому +5

    You helped me so much. Thank you for this video.

    • @blowcoal
      @blowcoal  5 років тому +1

      Reed glad to help man!

  • @DJTAZ1996
    @DJTAZ1996 5 років тому +2

    Way my 93 chevy cheyenne 4.3 v6 is acting the trouble code says 32 for egr valve. Regular slow drive it dont do bad just when try goose it or hard acellerate it starts farting and pissing the bed. Think that egr is definately culprit. Had it idling in yard and for laughs and giggles took flat screwdriver and pressed open egr valve it acted exactly like it does on road under accelleration. Not sure if its stuck closed or just randomly tries opening. Great vid btw

  • @coreythefam6455
    @coreythefam6455 5 років тому +8

    Did you notice any difference In acceleration or exhaust? Helpful video btw

  • @xXxCrazyJay810xXx
    @xXxCrazyJay810xXx 3 роки тому +3

    Just get some small vaccum line and slide it over your crack to repair the line.👍

  • @SingerAuto1967
    @SingerAuto1967 2 роки тому

    What would cause a slightly high idle. Around 1000-1100. I know the EGR needs to be replaced. Where the vacuum hose is is clogged up. It also has a exhaust leak that’s getting fixed today. Seems to run out fine

  • @Ali.C.91
    @Ali.C.91 6 років тому +1

    Helpful video. Thanks!

  • @aidanoglesbee5656
    @aidanoglesbee5656 2 місяці тому

    thanks for the video

  • @guardinoinc.7490
    @guardinoinc.7490 Місяць тому

    Great video… I have a question though, how far back do the runners in the intake manifold go. I’m trying to clean the carbon out of that area. Thank you

  • @thomasdavidson7367
    @thomasdavidson7367 3 роки тому +5

    Great vid, very informative. Did your truck have an erratic idle on cold start and stalling issues when warm prior to change?

    • @UFOGHOSTHUNTER
      @UFOGHOSTHUNTER 2 роки тому

      That's what mine is doing right now.

    • @avengreen3028
      @avengreen3028 2 роки тому

      Ever figure out what was wrong same problem

    • @sega2229
      @sega2229 2 роки тому

      Mines does that and my egr isn’t working

  • @massiveyeetage8340
    @massiveyeetage8340 3 роки тому +1

    I checked my egr the way you showed me how to an it works like it should but my truck is still shutting off an idling like shit when I put it into gear the trans was just rebuilt, when it's in park it runs fine I'm uploading a video on it now it's just takeing awhile to upload

    • @flylyfe5526
      @flylyfe5526 3 роки тому +1

      Check your tps or pcv valve or your iac valve it will for sure be one of those

    • @fragilelivesbrokendreams3074
      @fragilelivesbrokendreams3074 3 роки тому +1

      Idle control valve. Is what that sounds like

    • @ryansorensen2955
      @ryansorensen2955 2 роки тому

      My 95 just had this issue, idle a little rough in park but in gear try to die. Had to use the 2 pedal method to get it moving and still it would lurch and try to die. Fixed mine with a fuel pump and fuel filter, replaced vacuum lines up top and runs like new now.

  • @jonathanodell8854
    @jonathanodell8854 3 місяці тому

    I have gmc w4 cabover with this 5.7 350 tbi and my studs and nuts look like they were melted to nothing by acid the egr sheet metal case snapped loose but the egr still works i have it strapped down in place im afraid of removing it for replacement not knowing what to do get threaded studs out sure hope not gonna have to remove the intake ....

  • @XxDOPEKILLERXx
    @XxDOPEKILLERXx 6 років тому +3

    Very well made video thank you!

    • @blowcoal
      @blowcoal  6 років тому

      Thanks! No problem

  • @joshuam.2685
    @joshuam.2685 4 роки тому +1

    Nice !.. I hope this is my problem.. my sub hesitates and chokes from a stop , at first touch of throttle. . Let off and it returns to normal idle. Frusterating problem.

  • @royjg83
    @royjg83 3 роки тому +1

    Quality video!

  • @stewartkelley293
    @stewartkelley293 3 роки тому +1

    I think my 93 z71 has that problem egr , I have good throttle but past half way it just Boggs, let of the the gas comes back to life gona try the egr ,

  • @yohon1550
    @yohon1550 4 роки тому +3

    This has got me a little confused I have been researching this for a wile because I dont know if the EGR valve oem part number is for my 90 5.7 . I been trying to find the correct part. When I look up the part number you used it says it is a positive pressure valve, everything I read says these TBI 350's use a negative pressure valve. can you explain what I am not getting here?

    • @chevyguy6961
      @chevyguy6961 3 роки тому +1

      If your GVW is above 8500 you need a ported egr valve.

    • @electricguysvcs
      @electricguysvcs 2 роки тому

      Did you ever get this resolved? I have a 91 that needs a negative

  • @albertgomez6855
    @albertgomez6855 2 роки тому +2

    My truck runs fine but a check engine lights comes on my 94 its the code 32 so that's why I want to replace it

  • @boosted_burt2123
    @boosted_burt2123 3 роки тому +2

    Man that into was loud but it sounded great

  • @randywl8925
    @randywl8925 Рік тому

    I just replaced my TPS and its now throwing a 32 code. The check engine light only comes on at about 45 to 50 MPH. Below that putting around town the light is off.

  • @randy1ization
    @randy1ization 3 роки тому +6

    you should never tighten one side down first and then the other , lightly snug them both down then tighten,. when you tighten one side down first, you make the part cock to one side or the other, this applies to any mating surface such as cylinder heads, intakes, carburetor bowls , ect.. try to get in the habit of tightening in steps and it will save u much grief.

    • @mrhead5823
      @mrhead5823 3 роки тому +1

      Sounds like your nuts are too tight, maybe your Spiderman briefs are too small?

  • @evdawg7757
    @evdawg7757 2 роки тому

    Coming from the north and these being fairly old now, I've seen these egrs almost never come loose. They can be a bastard.

  • @josemedero7278
    @josemedero7278 5 місяців тому

    Wow what is that on the air filter location? Where did you buy it ?

  • @frankcabrera6319
    @frankcabrera6319 4 роки тому +1

    My truck at idle or stop after idle too long like for 5 minutes it seems too have a misfire u think the egr is bad?

  • @tonyedward6909
    @tonyedward6909 Рік тому

    Wouldn't the wrench be called a ratcheting box wrench instead of open end? Anyhow that's splitting hairs , you helped many obs ers including me. Thanks

  • @scout4locations
    @scout4locations 3 роки тому +1

    I have a 1995 GMC Yukon 5.7 TBI but my air filter looks nothing like yours. What is it that you have on there? I am new to trucks and motors, so forgive me if it should be obvious.

  • @5809Alejandro
    @5809Alejandro Рік тому

    How can I clean carbon build up in my 5.0 89 chevy Silverado it’s no passing emission test

  • @worstnightmare9772
    @worstnightmare9772 3 роки тому +1

    Would a bad EGR valve make a low idle and running rich my SUV is a 94 suburban Silverado edition TBI

    • @Hawkers02
      @Hawkers02 Рік тому

      Most likely. Mine is doing the same

  • @BattleOfBowties
    @BattleOfBowties 4 роки тому

    Nice truck!

  • @bellboysekiu
    @bellboysekiu 5 років тому +2

    What is that intake you have on there?

  • @terrydoberstein6742
    @terrydoberstein6742 5 років тому +2

    Are You getting better mpg now?

  • @catdakman1273
    @catdakman1273 4 роки тому +5

    349K miles WOW I only have 251K

    • @randy1ization
      @randy1ization 3 роки тому +1

      im pushing 380.000 these trucks are legendary. climbing in value. we thought they were junk boxes, until we see the turds being sold now.. u have to know a great, honest mechanic, with several 5,000 scan tools, oscilliscope, subscriptions to ALLDATA, ect to get them fixed, or go to a stealership, and have them guess, because they dont know how to fix them either. they guess at the most expensive part first, then work down. they wont refund money, then tell u to trade it in with them, for another turd. They then resell it , and it gets flipped several times, until someone who can fix it gets it.

  • @jasonglover5989
    @jasonglover5989 3 роки тому

    Very helpful!

  • @Mrbooboo1972
    @Mrbooboo1972 2 роки тому

    Thanks for the tips. Appreciate it. Also gonna Sub.

  • @hadenwaggoner5008
    @hadenwaggoner5008 3 роки тому +1

    Did you ever find the vaccum line that was broke?? Im stuck and can't find them

  • @philliphoang4
    @philliphoang4 Рік тому

    Hello guys , I have a question, my 1995 GMC Sierra v6 TBI engine, I have no idea the car start right up but when I’m moved to D or R the engine shut off right away, I have no clue what’s going on? So if your guys know please tell me what’s happen to my car and what’s part I need to fix , thank you so much everyone

  • @dawsongriffiths3788
    @dawsongriffiths3788 2 роки тому

    Did this fix the problem

  • @oswaldocobian637
    @oswaldocobian637 2 роки тому

    I replaced egr valve and code 33 popped back up today. Any advice? My truck doesn’t have an exhaust either it was chopped when I bought the truck

  • @MrJdub20tx
    @MrJdub20tx 2 роки тому

    Damn I wish Big Jim accelerated like that! Lol(my 95)

  • @spacecowboy_1
    @spacecowboy_1 4 роки тому +2

    Was yours shifting hard on 2nd gear but after good ? Also hesitant when stepping on it from stop???

    • @3king2king
      @3king2king 4 роки тому +2

      I have the exact same problem.

    • @brandonstandinger6671
      @brandonstandinger6671 4 роки тому +1

      Same issues

    • @Svidrigailov1
      @Svidrigailov1 4 роки тому +1

      Also same. Did any of you fix it

    • @brandonstandinger6671
      @brandonstandinger6671 4 роки тому +2

      I had two codes for O2 sensor and knock sensor. Replaced the O2 running better now, knock is next.

    • @spacecowboy_1
      @spacecowboy_1 4 роки тому +1

      William H. Bonney i changed the throttle position sensor and fixed my problem

  • @drejackson1000
    @drejackson1000 4 роки тому

    Will a bad EGR cause the truck to not start period

    • @jacobking4106
      @jacobking4106 4 роки тому

      When hot only? Mine starts when cold only

    • @zephead4835
      @zephead4835 3 роки тому

      I have a 91 with a 5.7 TBI good spark good fuel injectors won't fire could it be the EGR valve I've checked the ECM and it looks perfect inside

  • @andonair3281
    @andonair3281 3 роки тому

    I like the air cleaner where did u get it

  • @lht5dy31
    @lht5dy31 Рік тому

    That inside bolt is NOT easy. 89 k1500. Having huge issues with that inside bolt

  • @rorymaciver5756
    @rorymaciver5756 3 роки тому

    it would be nice to hear what your saying over the to loud obnoxious music

  • @jarvisperry4452
    @jarvisperry4452 4 роки тому

    What type of Air filter it's that? It would go great on my truck..

    • @blowcoal
      @blowcoal  4 роки тому +1

      Jarvis Perry it was just a kit off of eBay

  • @loganshea4201
    @loganshea4201 3 роки тому

    What about if it stalls in gear at a stop?

    • @KevinLSX619
      @KevinLSX619 2 роки тому

      Hey did you ever find this out?

    • @loganshea4201
      @loganshea4201 2 роки тому

      @@KevinLSX619 yes, it was a bad distributor

    • @KevinLSX619
      @KevinLSX619 2 роки тому

      @@loganshea4201 Thanks. Already replaced a lot of sensors, icm, dist cap and spark plugs. Gonna try this.