Car trouble

27
Posted 23rd Apr
Noticed today that my car (Nissan Note) is struggling to go uphill, slowing down, so I tested on a long straight and I couldn’t even get past 60mph.

I’ll be going to garage tomorrow but any ideas to what could cause it?
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Probably going into limp mode. Basically a safety mode which is to try and protect the engine etc..

Waste of time speculating what might be at fault as it could literately be anything. It will most likely need a dealer level diagnostics machine hooked up to it. That should hopefully give you or indeed a mechanic a good idea of what might actually be at fault.
27 Comments
Turbo or blocked dpf?
brick under the gas pedal
I'm sure the note has quite a reputation for dodgy camshaft sensors, solenoid valves or dirty oil affecting things, sometimes throwing a code sometimes not.

If oil and filter hasn't been changed recently id start from there.
i know nothing about cars, but when our car struggled to go uphill and couldn't pick up speed, it turned out to be the gear clutch being worn and needed replacing.
What engine, what year etc? Need more details to be able to help otherwise it's guess work
Probably going into limp mode. Basically a safety mode which is to try and protect the engine etc..

Waste of time speculating what might be at fault as it could literately be anything. It will most likely need a dealer level diagnostics machine hooked up to it. That should hopefully give you or indeed a mechanic a good idea of what might actually be at fault.
That stick in the middle by the handbrake, have you tried wiggling it around and choosing a different number?
Try some cataclean although it’s likely a bad air filter or semi blocked fuel filter would be my guess at the cheaper end of the scale of things to put right. You could check the air filter easily yourself.
Edited by: "cmdr_elito" 24th Apr
cmdr_elito24/04/2019 04:55

Try some cataclean although it’s likely a bad air filter or semi blocked f …Try some cataclean although it’s likely a bad air filter or semi blocked fuel filter would be my guess at the cheaper end of the scale of things to put right. You could check the air filter easily yourself.



Take your car and give if a good thrash and it'll do exactly the same thing. Good advice to anyone before taking car for an MOT especially if it's a petrol is to give it a good thrashing. It gets the cat up to an higher temp than normal so will often burn off some accumulated crap. Cataclean may aid but it isn't going to cure a fault. A blocked fuel filter or air filter would likely cause it to struggle to start or stutter as it's starved of fuel/air. The op is describing limp mode.
you haven't told us If it's petrol or Diesel, vital for any attempt at a good diagnosis.

If it's petrol though my money is on a dirty MAF sensor, Garage will charge you a fortune for a new one but you can probably get away with giving a good clean with electrical contact cleaner.
.MUFC.24/04/2019 07:54

Take your car and give if a good thrash and it'll do exactly the same …Take your car and give if a good thrash and it'll do exactly the same thing. Good advice to anyone before taking car for an MOT especially if it's a petrol is to give it a good thrashing. It gets the cat up to an higher temp than normal so will often burn off some accumulated crap. Cataclean may aid but it isn't going to cure a fault. A blocked fuel filter or air filter would likely cause it to struggle to start or stutter as it's starved of fuel/air. The op is describing limp mode.


I’ve had a bad air filter/fuel filter do exactly what the OP has described on a diesel. I fixed it myself and did not mess around with the computer so know it hadn’t gone into limp mode. Limp mode would not normally allow a car to do 60 either basically about 20.
cmdr_elito15 m ago

I’ve had a bad air filter/fuel filter do exactly what the OP has described …I’ve had a bad air filter/fuel filter do exactly what the OP has described on a diesel. I fixed it myself and did not mess around with the computer so know it hadn’t gone into limp mode. Limp mode would not normally allow a car to do 60 either basically about 20.


That would depend on car. My car just limits revs to 2k. Could still do 60. Didn't even tell you it was in limp mode. My fault was a turbo but it could be literally anything.

Most common fault would be egr or dpf related but there are so many different things that can trigger limp mode. Sure restricted air/fuel being some of many. Crank sensor, lamda sensor/s, maf sensor.

It's like trying to diagnose an health condition. It's impossible with the little details we know.
Edited by: ".MUFC." 24th Apr
Renault and nissan merged it the early 00's and the quality went down hill
enginemadme1 h, 56 m ago

Renault and nissan merged it the early 00's and the quality went down hill


Nissan's did, but on the upside it improved Renault quality.....

The Mk2 Laguna was kak, Renault used a lot of Nissan techniques on the Laguna 3 and it turned out to be a great if a little dull car, Laguna reputation was already tarnished though and was a very poor seller, thats why the UK didn't get it replacement the Qashqai based Renault Talisman....also a great car.
Thanks for advise, it’s petrol btw, it’s actually driving fine again this morning, maybe something was blocked like filter and cleared or something overheated? I don’t know but I’ll see how it goes and hopefully it will be alright
SmokinAce724/04/2019 12:10

Thanks for advise, it’s petrol btw, it’s actually driving fine again this m …Thanks for advise, it’s petrol btw, it’s actually driving fine again this morning, maybe something was blocked like filter and cleared or something overheated? I don’t know but I’ll see how it goes and hopefully it will be alright


Again, this is what happened to our car. The problem came and go but it got worse as time goes by, until it was becoming difficult to drive the car at all.
SmokinAce71 h, 18 m ago

Thanks for advise, it’s petrol btw, it’s actually driving fine again this m …Thanks for advise, it’s petrol btw, it’s actually driving fine again this morning, maybe something was blocked like filter and cleared or something overheated? I don’t know but I’ll see how it goes and hopefully it will be alright


Woah! This isn't how it works around here, you can't come on here asking for advise, get advise & then post an update with a thanks, no siree
mutley11 h, 6 m ago

Again, this is what happened to our car. The problem came and go but it …Again, this is what happened to our car. The problem came and go but it got worse as time goes by, until it was becoming difficult to drive the car at all.


Sometimes is the CPU. They do constant diagnostics and at some point found something unusual. Put on a limp mode for safety reasons until a new diagnostic is completed.

My old Saab went on limp mode after went out of fuel. I always carry a obd2 scanner and after clearing the code she was fine.
cmdr_elito14 h, 13 m ago

Try some cataclean although it’s likely a bad air filter or semi blocked f …Try some cataclean although it’s likely a bad air filter or semi blocked fuel filter would be my guess at the cheaper end of the scale of things to put right. You could check the air filter easily yourself.



I would say fuel filter also if you haven't had any engine lights on.
Edited by: "markvirgo" 24th Apr
It could be a multitude of things, could be the start of an intermittent fault that could be hard to replicate. Sometimes it can just be like a glitch and it'll never happen again. Sometimes the engine light doesn't even get triggered. However a fault code will no doubt still exist on whatever module the error/s occured. I'd just drive it again and if it happens again get it in a garage for it to be put on a diagnostics machine. With a bit of luck the problem won't reaccur.
Well the problem did come back last night so does appear to be intermittent. I took it to a garage this morning and they ran a diagnostic on the engine and said no problems. They didn't check anything else as I had to get to work but ill have to get in a garage for a proper check
Just buy a cheap £4 up obd code reader - reading codes is first thing to do norwadays.
What did garage charge - 30 quid ??
Wife's car had similar problem, not going faster than 20mph, she called me, and I told her to nurse it home, when she arrived back , I found the rubber mat had rolled up stopping the accelerator pedal travel .....if only all problems were as simple ...let us know if you get sorted...
zzzz1 h, 17 m ago

Just buy a cheap £4 up obd code reader - reading codes is first thing to …Just buy a cheap £4 up obd code reader - reading codes is first thing to do norwadays.What did garage charge - 30 quid ??


Problem with cheap obd readers is they will only read basic codes. Probably why the ops garage didn't detect any codes.

SmokinAce725th Apr

Well the problem did come back last night so does appear to be …Well the problem did come back last night so does appear to be intermittent. I took it to a garage this morning and they ran a diagnostic on the engine and said no problems. They didn't check anything else as I had to get to work but ill have to get in a garage for a proper check


They might not have dealer level diagnostics so not all codes will show. It might be better going to a Nissan/Renault specialist/dealer or auto electrician as they'll have the right diagnostics etc..

Sometimes with intermittent faults that cure themselves they can be really difficult to fix because they are quite simply hard to replicate.

If you're lucky a cheap obd reader might pick up the fault if you plug it in whilst the fault is present.

You may eventually figure what triggers it, ie when going up hills, accelerating past 3000rpm etcc. Then you could replicate it and maybe get a reading.

Most manufacturer faults are stored somewhere in memory until they're cleared.
zzzz3 h, 38 m ago

Just buy a cheap £4 up obd code reader - reading codes is first thing to …Just buy a cheap £4 up obd code reader - reading codes is first thing to do norwadays.What did garage charge - 30 quid ??



Quote surprisingly they didn't charge. They said £20 but when it came back with no fault he just said not to charge me.

I have now booked in with Nissan where I got the car as they're going to charge the same as my usual garage but I think id prefer Nissan as hopefully they should be able to diagnose it whereas my usual one may use the same diagnostic took as the first one. have to wait until 7th May though!

As for replicating it I don't seem to be able to. It just either does or doesn't do it. I started to look at new cars so who knows haha
I finally found the reason for the speed limitation, it appears to happen when I put my headlights on.

I tested this yesterday and happens every time I turn them on and when I turn them off I can go much faster.

Any suggestions on resolving this? New battery or something a garage would need to look at?

Many thanks.
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