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NISSAN FRONTIER 4X4 oil entering from the turbo to the intake monifold,the oil is leaking where the monifold bolted unto the engine ,also there is smoke coming from the tail pipe after starting the engin in the morning ,what could be the possible causes?
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You need to loosen the torsion bar adjusting bolts until all the tension is removed, remember to mark a reference point from bar to frame so you can get close to the correct riding height after reassembly. Can't tell if you split the ball joint from the knuckle from your explanation but a couple of good solid whacks to the lower knuckle will unlock it. Mark & remove the control arm bushing bolts and use a pry bar to push out arm @ bushings.
Turbo manifold, blow off valve, waste gate, intercooler, turbo timer, piggyback or standalone ECU, most likely an all new exhaust system, new intake, filter. An oil cooler may be needed, as those turbo chargers are most likely cooled and lubricated by the oil in the engine, needing to be piped through the turbo itself.
if the turbo is leaking oil into the engine then you have an internal engine problem. the turbo works off of the engines exhaust , therefore if oil is getting back into the intake from the turbo then it is coming from the exhaust. posible worn piston rings or bad valve seals. it also could be a bad turbo bearing and seals letting engine oil leak into the turbo from the turbo oil lines from the engine and blowing back into the intake.
SOUND LIKE INTAKE MANIFOLD LEAK.ANTIFREEZE WILL GET IN CRANK CASE DILUTE ENGINE OIL CAUSE VALVE LIFTER NOISE.TAKE VECHICLE TO RADIATOR SHOP OR GARAGE.LET THEM PRESSURISE COOLANT SYSTEM CHECK FOR INTAKE MANIFOLD LEAK AND HEAD GASKET LEAK.
Look under the front of the truck. You will see a square removable plate with 2 bolts in it...inches from where the radiator sits. Remove those bolts and you will have access to the filter.
Knock sensors can be difficult to locate because there usually buried under intake or exhaust manifolds and misc. engine wiring and plumbing. Knock sensors need to hear an engine knocking noise, therefore there usually located somewhere they can hear an engine knock. If it's a V6 then possibly it will be between the cylinder heads and access to them can only be attained by removing the intake manifold. I would suggest calling a Nissan Dealer parts person and ask them. Good luck.
its hard to solve this one with out being present and seeing it for myself but coming from the motor trade if you have any queries or problems with your vehicle after its bin to a place of repair it is there duty to follow up or ease your worries. Take it back to the place you got it and ask if they can take a lok and show you personally where the leak is coming from or what the small leak could be. if nothing its good customer service. hope this helps
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