Kingy670
11th February 2020, 07:51 PM
Good evening Patrollers,
Just thought I would share my recent experiences with my 2011 series 7 GU CRD patrol - and the crap experience from the local Nissan Dealer.
I bought her only in december last year, and it was a little slow to start, she would crank and take a little while and then start - over the next month this got a little worse, then we got the hesitations under load from about 2200rpm to 2500rpm, then we progressed to hot start issues, and finally on the weekend she stopped all together.
So I had a friend run a diagnostic and it came back fuel rail pressure sensor - rang nissan dealer, got the total run around, from nah mate we dont have them, to the service manager telling me they do replace them, but parts manager saying he cant get the part - but that is covered in other threads. Up shot they wanted to sell me a complete rail for $1500.
So because the diagnostic said sensor, we replaced the sensor, but still had the problems. Today, the relief valve turned up in the post, but before fitting it we checked the injector pulse with a test light - nothing. We started to 2nd guess and think it was electrical/relay issue. Changed the relief valve, and bang, she fired up straight away, and no more hesitation - woo hoo fixed. so the lessons Ive learnt the last 2 weeks.
1) Avoid nissan dealers!!
2) If you are searching for fuel rail parts - get the fuel rail part number off the fuel rail, (both the nissan part number and the bosch part number) and use that to help you google search parts - much more reassuring when the part you order says it fits fuel rail such and such.
3) don't under estimate the importance of the relief valve - our experience, and a quick google search shows that the with low fuel rail pressure, the ecu wont fire up the injectors - which makes you look in the wrong direction - at least until you make the connection with the low fuel rail pressure.
4) there are discussions threads floating around that is mistaking the banjo bolt on the side of the fuel rail as a relief valve when it is actually the fuel return. The relief valve is at the end of the rail.
Thanks,
Just thought I would share my recent experiences with my 2011 series 7 GU CRD patrol - and the crap experience from the local Nissan Dealer.
I bought her only in december last year, and it was a little slow to start, she would crank and take a little while and then start - over the next month this got a little worse, then we got the hesitations under load from about 2200rpm to 2500rpm, then we progressed to hot start issues, and finally on the weekend she stopped all together.
So I had a friend run a diagnostic and it came back fuel rail pressure sensor - rang nissan dealer, got the total run around, from nah mate we dont have them, to the service manager telling me they do replace them, but parts manager saying he cant get the part - but that is covered in other threads. Up shot they wanted to sell me a complete rail for $1500.
So because the diagnostic said sensor, we replaced the sensor, but still had the problems. Today, the relief valve turned up in the post, but before fitting it we checked the injector pulse with a test light - nothing. We started to 2nd guess and think it was electrical/relay issue. Changed the relief valve, and bang, she fired up straight away, and no more hesitation - woo hoo fixed. so the lessons Ive learnt the last 2 weeks.
1) Avoid nissan dealers!!
2) If you are searching for fuel rail parts - get the fuel rail part number off the fuel rail, (both the nissan part number and the bosch part number) and use that to help you google search parts - much more reassuring when the part you order says it fits fuel rail such and such.
3) don't under estimate the importance of the relief valve - our experience, and a quick google search shows that the with low fuel rail pressure, the ecu wont fire up the injectors - which makes you look in the wrong direction - at least until you make the connection with the low fuel rail pressure.
4) there are discussions threads floating around that is mistaking the banjo bolt on the side of the fuel rail as a relief valve when it is actually the fuel return. The relief valve is at the end of the rail.
Thanks,