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Turbo boost adjustment for mack 470h.p. engine, how do you make this adjustment?


there is none as the engine uses all the boost it can get
if you want more power then have the pump reset to 500 hp settings
boost pressures are a result of the fuel settings from the pump allowing more fuel in to burn which produces a hotter exhaust making the turbine wheel spin faster which creates the extra boost
a genuine mack 470 hp engine is a really torque engine if driven properly and if dyno tested will produce around 450 hp at the back wheels with a relative flat torque curve which means that the rpms hang on longer before having to change gears
however to keep the maximum torque available at rpms you have to drop a half ratio as soon as the rpms start to drop as the range change will be 250 rpms and that will keep the torque range well up
don't let it bog down as all that does is waste fuel and drive time

Jul 02, 2016 | Cars & Trucks

1 Answer

My Mac 13 speed maxi torque transmission is stuck in high range


Hi Elvin:
My Mack is the most bullet proof old truck I've owned.
Don't know the specifics of your transmission, but mine has an air controlled shift.
It won't work properly unless there is adequate air pressure.
Hope this may help you.
Cheers.

Jan 07, 2016 | Cars & Trucks

1 Answer

What cause 4l60e tramnmission in a 1999 gmc yukon not to shift from 2nd to 3rd gear


Hello Mack, Most likely the 3-4 Clutch Pack is burned out.
Here's a good reference for you to start.
https://www.youtube.com/watch?v=mcUo3rDHaLU
Lot's of information available on the net for this problem.

Dec 22, 2014 | 1999 GMC Yukon Denali

1 Answer

Jake brake installation 1999 Mack truck


This is a specialist operation and should be done by competent mechanics. If it is a Mack engine any wrong installation will result in cam follower/cam shaft damage

Nov 03, 2014 | Cars & Trucks

1 Answer

How do i fix a retarder on a mack trident , it only works on the half setting


Hello Roger,is it a mack dinatart or Jacobs engine brake , what I found in the past its the switch it self , but you may have to look under valve cover, there may be a wire off there or outside valve cover or the electeic selonoid on exhaust valve is bad what year is it and motor size ? im really trying to help.
Woody

Sep 28, 2014 | Cars & Trucks

1 Answer

What is the torque and sequence for head bolts on a mack e7 350 diesel engine?


you need a manual for torgue specs if you have them then start in the middle and work your way out in a clockwise manner

Aug 16, 2014 | Cars & Trucks

2 Answers

WHAT DOES THE LIGHTNING BOLT WARNING LIGHT MEAN ON A 2006 MACK GRANITE


if you have cold weather its a tire pressure code that may take days to go away

Jul 15, 2014 | 2007 Dodge Caliber SXT Sport Hatchback

1 Answer

Whatis a idle motor an would it mack my truck shake going from overdrive to drive


An Idle motor on a fuel injected vehicle is virtually the same thing as the choke used to be for a carburated engine. It is basically a solenoid valve that adjusts the air fuel mixture to be rich while an engine is warming up to operating temperature. Once the engine is warm the idle motor is taken out of the mix and the computer begins to control the air fuel mixture. And no I don't believe it would have any effect on your truck shifting into or out of overdrive. Sounds more like torque converter clutch shutter.

Dec 02, 2012 | Cars & Trucks

2 Answers

2004 Kia Optima has 3 check engine lights on for the following codes - 0741, 0455, 1529. Is this safe to ignore, or how soon to have serviced? Car runs fine, except when stopping for lights, then it kind...


HI there i will try to help .
first code P0741= transmission torque converter is stuck in the off bastion .
1. Check your transmission fluid level to see if low or might need replacing.
2.You might have a Faulty torque converter clutch solenoid valve.
3.If you can check Torque converter clutch solenoid valve harness or connectors
4.If you can check Torque converter solenoid valve circuit to see it is open or shorted.
But first check your trans fluid '''

2 codeP0455=evaporative emission system leak detected .
1. check your fuel cap and mack shore it is on tight before replacing .

3.Code P1529= check T C M it might be do to code P0741.
1.Fix first code P0741and P0455 and clear codes and see if code P1529
comes back.

good luck ziggyone

Sep 14, 2011 | 2004 Kia Optima

1 Answer

My truck is running hot and macking noice from the head


If you have a mechanical sound and water in oil,it will require engine work...Good Luck..

Oct 18, 2008 | 2001 Dodge Durango

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