gio400 Posted August 13, 2023 Share Posted August 13, 2023 What are the symptoms of an stuck open wastegate Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/ Share on other sites More sharing options...
0 BOBWhite Posted August 14, 2023 Share Posted August 14, 2023 Hardly any boost and it won't make much noise. Depending on the model you should be able to manually move the actuator to see if it's stuck. Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536901 Share on other sites More sharing options...
0 gio400 Posted August 14, 2023 Author Share Posted August 14, 2023 3 minutes ago, BOBWhite said: Hardly any boost and it won't make much noise. Depending on the model you should be able to manually move the actuator to see if it's stuck. Will it be dumping a lot of fuel also? Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536902 Share on other sites More sharing options...
0 Joey Mack Posted August 14, 2023 Share Posted August 14, 2023 It won't dump fuel. You will just have your foot in it trying make it go.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536917 Share on other sites More sharing options...
0 fjh Posted August 14, 2023 Share Posted August 14, 2023 1 hour ago, Joey Mack said: It won't dump fuel. You will just have your foot in it trying make it go.. pyro temp up with no go ! the turbo exhaust snail will look blueish also ! NOTE the year and model of truck would help here! Just sayin! The waste gate was used in two years of trucks 2001- 2003 I believe ! Max boost 33 Psi and then everything changed to the EGR fiasco either VGT or AI ! Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536918 Share on other sites More sharing options...
0 Joey Mack Posted August 14, 2023 Share Posted August 14, 2023 yep, more info please.. It looks like a turbo from an ASET-C.. if it is the same issue in another post? Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536920 Share on other sites More sharing options...
0 gio400 Posted August 14, 2023 Author Share Posted August 14, 2023 6 hours ago, fjh said: pyro temp up with no go ! the turbo exhaust snail will look blueish also ! NOTE the year and model of truck would help here! Just sayin! The waste gate was used in two years of trucks 2001- 2003 I believe ! Max boost 33 Psi and then everything changed to the EGR fiasco either VGT or AI ! It’s a vnt turbo, so which means the vents were stuck on open, it’s a 2004 Detroit 12.7 series 60 egr Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536943 Share on other sites More sharing options...
0 Joey Mack Posted August 14, 2023 Share Posted August 14, 2023 From what I re ember, that setup is pnuematic. It is a simple system using boost pressure to open the waste gate when boost is too high. I do not recall a computer is used to control it.. You should be able to un hook the accuator and move the lever to see if the ring nozzle is sticking. also the pin could be frozen which will jam the ring nozzle in any position. I believe the accuator is replaceable with out needing a computer.. I have also taken these turbos apart to clean the ring nozzle.. You have options. It would be good to see a picture of the turbo.. Jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536945 Share on other sites More sharing options...
0 gio400 Posted August 14, 2023 Author Share Posted August 14, 2023 31 minutes ago, Joey Mack said: From what I re ember, that setup is pnuematic. It is a simple system using boost pressure to open the waste gate when boost is too high. I do not recall a computer is used to control it.. You should be able to un hook the accuator and move the lever to see if the ring nozzle is sticking. also the pin could be frozen which will jam the ring nozzle in any position. I believe the accuator is replaceable with out needing a computer.. I have also taken these turbos apart to clean the ring nozzle.. You have options. It would be good to see a picture of the turbo.. Jojo With the Viens stuck open , will the truck burn more fuel? Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536949 Share on other sites More sharing options...
0 gio400 Posted August 14, 2023 Author Share Posted August 14, 2023 Just now, gio400 said: With the Viens stuck open , will the truck burn more fuel? I notice the problem when I was going up a hill loaded and the truck started pooping and dumping black smoke Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536950 Share on other sites More sharing options...
0 Joey Mack Posted August 14, 2023 Share Posted August 14, 2023 that makes sense. the viens are open so boost is lost, there is not enough forced air to mix with the dose of fuel sent through the injectors.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536951 Share on other sites More sharing options...
0 fjh Posted August 15, 2023 Share Posted August 15, 2023 5 hours ago, gio400 said: It’s a vnt turbo, so which means the vents were stuck on open, it’s a 2004 Detroit 12.7 series 60 egr Joe may have you covered here! I know very little of the Detroit system! ! You may also have a boost leak! Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536974 Share on other sites More sharing options...
0 mechohaulic Posted August 15, 2023 Share Posted August 15, 2023 looks like I have to take notes on this topic=never delt with a waste gate .hope there are pictures. Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536980 Share on other sites More sharing options...
0 Joey Mack Posted August 15, 2023 Share Posted August 15, 2023 He has 2 different postings on this. I'm waiting til, better pics are posted. Quote Link to comment https://www.bigmacktrucks.com/topic/73158-open-wastegate/#findComment-536981 Share on other sites More sharing options...
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gio400
What are the symptoms of an stuck open wastegate
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