Moparmike Posted February 5, 2017 Share Posted February 5, 2017 Bottom right side what's this gauge for I'm new to this truck .2000 rd688 1 Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/ Share on other sites More sharing options...
1 Moparmike Posted February 6, 2017 Author Share Posted February 6, 2017 Ok thanks I'll take a look at that.. Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360877 Share on other sites More sharing options...
0 57 bcr Posted February 5, 2017 Share Posted February 5, 2017 That would be your manifold pressure (turbo boost) gauge,Mike. Al Quote IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360856 Share on other sites More sharing options...
0 6368 Posted February 6, 2017 Share Posted February 6, 2017 its best to keep the needle in that gauge as high as you can at all times 2 Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360861 Share on other sites More sharing options...
0 Moparmike Posted February 6, 2017 Author Share Posted February 6, 2017 I thought it was but it only gets up to about 5 or so ..what should I check..it pulls good runs strong..came home about 290 miles ran from 60 to 75 most the way in . Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360872 Share on other sites More sharing options...
0 gearhead204 Posted February 6, 2017 Share Posted February 6, 2017 check your charge air cooler and all related piping and connections. you may need to pressure test the charge air cooler (they are prone to fail in the cores or weld seams) 5psi would be ok for a turbo charged Briggs & Stratton's but very low for any thing else unless you never pulled any hills and are very soft on the throttle. a 350 or 400 should make at least 25 psi Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360876 Share on other sites More sharing options...
0 carlotpilot Posted February 6, 2017 Share Posted February 6, 2017 44 minutes ago, gearhead204 said: check your charge air cooler and all related piping and connections. you may need to pressure test the charge air cooler (they are prone to fail in the cores or weld seams) 5psi would be ok for a turbo charged Briggs & Stratton's but very low for any thing else unless you never pulled any hills and are very soft on the throttle. a 350 or 400 should make at least 25 psi or you`re bobtailing 1 Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360882 Share on other sites More sharing options...
0 Popular Post Moparmike Posted February 6, 2017 Author Popular Post Share Posted February 6, 2017 Lol sorry it's a dump .. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360891 Share on other sites More sharing options...
0 Vladislav Posted February 6, 2017 Share Posted February 6, 2017 Might be Ok if you went empty. Being you I would make more observations with a load and up steep heels. Your turbo produces pressure by the energy of the exhaust. And when your truck runs easy and you don't apply much throttle not much exhaust is produced. So not much turbo supercharge is produced just because it is not needed in such cases. 1 Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360896 Share on other sites More sharing options...
0 Moparmike Posted February 6, 2017 Author Share Posted February 6, 2017 Ok thanks ..I'll check it out with a good load..none of my others have had a gauge .. Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360905 Share on other sites More sharing options...
0 gearhead204 Posted February 6, 2017 Share Posted February 6, 2017 empty that super 15 should still poke 15-17 pounds on a hard acceleration even empty . same style as the one my wife used to drive her's was a e7 400 with a 12 sp. Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360938 Share on other sites More sharing options...
0 Moparmike Posted February 6, 2017 Author Share Posted February 6, 2017 E7 400 8speed fuller trans.. Quote Link to comment https://www.bigmacktrucks.com/topic/48642-whats-this-gauge-for/#findComment-360957 Share on other sites More sharing options...
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Moparmike
Bottom right side what's this gauge for I'm new to this truck .2000 rd688
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