Hi all.
I'm new, and sorry for my (second) post asking for help.
I know this subject has been done to death too (been reading them all) but most cases seem to have some variation or lack detail so I'll give as many details as possible as I think somebody will tell me straight away what it is.
I've just bought a 2008 navara and it won't rev past a certain level.
This is an automatic model.
I thought it was limp mode at first, but it's not, as when testing today I managed to get up to 3500rpm very gently on the throttle in 3rd gear.
If I leave it in D however, it won't make it past 2500rpm, maybe 3000rpm in first gear.
It then jerks and flutters around 2500-2000rpm. Worse case I had it wouldn't rev above 1800rpm at one point.
After doing a lot of reading and from previous experience, I think it could be a few things:
1. Blocked fuel filter . The truck was VERY low on fuel when I picked it up. If this happened on my skyline I'd be looking at fuel starvation problems, as it almost feels like a fuel cut limiter.
2. Boost solenoid valve.
3. EGR Valve.
I have ordered a new fuel filter along with a new oil filter, air filter, and oil to give it a service, but they're yet to arrive.
I'm about to (after finishing my cuppa) go and locate and try and clean up the boost solenoid and the EGR valve.
Just wondering if there's anything obvious I'm missing or something else I should be checking.
Oh for the record I saw a lot of discussions about loosening the fuel cap, I tried that and hasn't helped.
Many thanks in advance for any help or assistance you can give.
-Tmog
I'm new, and sorry for my (second) post asking for help.
I know this subject has been done to death too (been reading them all) but most cases seem to have some variation or lack detail so I'll give as many details as possible as I think somebody will tell me straight away what it is.
I've just bought a 2008 navara and it won't rev past a certain level.
This is an automatic model.
I thought it was limp mode at first, but it's not, as when testing today I managed to get up to 3500rpm very gently on the throttle in 3rd gear.
If I leave it in D however, it won't make it past 2500rpm, maybe 3000rpm in first gear.
It then jerks and flutters around 2500-2000rpm. Worse case I had it wouldn't rev above 1800rpm at one point.
After doing a lot of reading and from previous experience, I think it could be a few things:
1. Blocked fuel filter . The truck was VERY low on fuel when I picked it up. If this happened on my skyline I'd be looking at fuel starvation problems, as it almost feels like a fuel cut limiter.
2. Boost solenoid valve.
3. EGR Valve.
I have ordered a new fuel filter along with a new oil filter, air filter, and oil to give it a service, but they're yet to arrive.
I'm about to (after finishing my cuppa) go and locate and try and clean up the boost solenoid and the EGR valve.
Just wondering if there's anything obvious I'm missing or something else I should be checking.
Oh for the record I saw a lot of discussions about loosening the fuel cap, I tried that and hasn't helped.
Many thanks in advance for any help or assistance you can give.
-Tmog
