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Mitsubishi triton: I have a 2009 Mitso Triton 2.5 D/C. it…

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Hi I have a 2009...
Hi I have a 2009 Mitso Triton 2.5 D/C. it is jerking and feels that it wont go any faster that 300 r/min and in 5 th gear it is about 120km/h.
Submitted: 3 years ago.Category: UK Car
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Answered in 20 hours by:
6/11/2015
UK Auto Mechanic: Matt, Mechanical Engineer replied 3 years ago
Matt
Matt, Mechanical Engineer
Category: UK Car
Satisfied Customers: 23,619
Experience: BEng hons Mech engineering, in auto industry 22 years
Verified
Hello
1st consider changing the fuel filter as if this partially blocked this too will reduce pressure.
If OK then also check the connections to the EGR valve, if either the vacuum pipe of electrical connection are damaged / corroded then the EGR can be on all time which certainly will hurt performance. Its also possible that its a fault with the EGR valve so its worth removing the valve and cleaning it out with brake cleaner, if it looks particularly clogged then replace it.
If this is OK then check the small vacuum lines to the turbo and its connected control solenoid on the bulkhead, any cracks or leaks can give turbo issues and its best to have the boost pressure measured actually measured with a boost gauge to check that the turbo is healthy and that the sensor is reading correctly
If its a variable vane turbo (they’ll be an actuator on the turbo body - but not a wastegate) then check its vacuum pipework as above and check the connections to the diaphragm / solenoid valve
Also worth checking that the glow-plug relay is switching off as they can stick on and leave the glow plugs also on - on some cars this can force it into limp home
Also worth considering adding a bottle of injector cleaner into the tank as a clogged injector nozzle will reduce power and give poor combustion - the next stage on from this is to remove all the injectors and have them ultrasonically cleaned and flow checked
Also check all the high pressure hoses post turbo/s for any split hoses or cracked metal pipes, also check the ends of the intercooler as its not unheard of to pop the end caps off under high boost.
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UK Auto Mechanic: Matt, Mechanical Engineer replied 3 years ago
Hello
do you need any more help?
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