nissan primastar trouble

One shot on kill

well guys

i have a primastar 04 very clean and well looked after slight trouble now doe

it is looseing power just before 2000 rpm sometimes. when i rev her she will rev up and just die down with foot still on pedal

some times when it is acting up it will keep cuting out at lights and tgen hard to start again

i thougt it was dirty filters but gave her a full service straight away when it stared to happen

it isnt happeni g all the time the problem comes and goes driven fine one day go to work next morning and she is acting up but starting to happen more and more

please does anyone have any ideas to what might be cause in this prob

thanks in advance

crosshair1

you need to get a proper diagnostics done on this, someone with renault clip will be your best bet.
Beyond that all anyone could offer is a best guess like egr, poor fuel filt. seal, sticking turbo mech. ,blocked boost solenoid.
Have one of these as the wrkshop van myself and they are piis poor before they show fault codes.

Nissan doctor

Alot of them are suffering with leaking injector seals which will cause a loss of fuelpressure, giving the symptoms you have. Have a look to see if around the injectors is wet.

crosshair1

It is internal wear in the injector bodies that allow excessive return flow from the injector, this prevents adequate rail pressure building.
Usually this is carried away in the leak off pipes without being visable.

These usually become very difficult to start before any noticeable difference in power is felt when on the road.
Also if your going to check injector return rates dont forget about the relief valve on the rail.
And unless the injectors have been out before, one or more is possibly seized in the head (you have been warned)

CarMuppet

Hard to tell without driving....

- Any black, blue or white smoke from exhaust?
- Notice any loss if coolant?
- Does internal heater blow warm air when requested?
- Any diagnostic lights on while engine is running?
- Notice any lack of braking assistance?
- When engine is idling, do the revs vary up and down?


My guess is (without seeing/hearing/smelling car) a crack in intake hose, inbetween air-meter and throttle-body. Also, it could be throttle body itself.

Was the car battery replaced recently? (sometimes causing a disturbance in piping)..

crosshair1

Carmuppet it's not a real nissan,
it's a f9q trafic
most of the items you list are not relevant to this model

One shot on kill

CarMuppet wrote: »

Hard to tell without driving....

- Any black, blue or white smoke from exhaust?
- Notice any loss if coolant?
- Does internal heater blow warm air when requested?
- Any diagnostic lights on while engine is running?
- Notice any lack of braking assistance?
- When engine is idling, do the revs vary up and down?


My guess is (without seeing/hearing/smelling car) a crack in intake hose, inbetween air-meter and throttle-body. Also, it could be throttle body itself.

Was the car battery replaced recently? (sometimes causing a disturbance in piping)..

the only thing i noticed was sometimes alot of smoke kinda grey smoke some one else told me could be injectors aswell would they be somethin i could do last week id be fairly handy