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Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Nissan
Satisfied Customers: 560
Experience:  30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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I have a 2008 nissan navara d40 that over heated ,the

Customer Question

hello i have a 2008 nissan navara d40 that over heated ,the coolant resevoir over flowed .the car stalled and shut down .it staryed again after it cooled down but u had to have foot to floor. i tried to get it to a mates where he has a garage but it shutdown again and now cranks but wont atart??bought it second hand at a car yard in brisbane i have only done 9000 km since November last year i have had the egr replaced because it cracked . i have an extended 5 year warranty which wouldn't fix it and i had a new alternator
Submitted: 3 months ago.
Category: Nissan
Expert:  david craig replied 3 months ago.

Hi Im David, sorry you're having issues with your vehicle. The very first thing that needs to be done is a compression test of all the cylinders. with the scenario that you have described, it is possible and likely that a.) you blew a head gasket b.)you cracked a head c)you bent valves.

Customer: replied 3 months ago.
that would stop it starting again.and what do i need to do for the compression test. worst case scenario??? $$$ i have warranty but that really only covers parts (fine print).but car dealers pretty helpful
Expert:  david craig replied 3 months ago.

yes, that would keep the vehicle from starting. a compression test is done by disabling the fuel system by puilling the fuel relay. removing all the plugs, installing a compression test gauge into each plugs hole(one at a time). cranking the engine over 5 cycles with gas pedal to the floor. then resding the gauge to see what thecompression of the cylinder being tested is.

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