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jazzmaster
jazzmaster, ASE Certified Tech
Category: Nissan
Satisfied Customers: 2951
Experience:  ase certified--32 yrs experience
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Tried getting my throttle body on my nissan pathfinder 1987

Customer Question

Hi tried getting my throttle body on my nissan pathfinder 1987 3.0 v6 to work ..had restored throttle body rebuilt all new parts runs nice on road.. rough idle remove air cleaner unit runs great?install air cleaner runs rough again?help.seems lack of air?
Thanks Byron Watson 10/13/15
Submitted: 1 year ago.
Category: Nissan
Expert:  Mike V. replied 1 year ago.

Hi Byron

Try leaving the air cleaner on but disconnecting the mass air flow sensor, then start the truck and see if it runs like the air filter is off.

Let me know.

Customer: replied 1 year ago.
I will try that &call you back on result..
Expert:  Mike V. replied 1 year ago.

Sounds good, thanks.

Customer: replied 1 year ago.
hi mike V i dissconected mass flow sensor& it would not run?any other ideas?
Expert:  Mike V. replied 1 year ago.

May seem a stupid question, but is the air filter clean?

Also check the oil and see if it smells like fuel, if it does the truck may be flooding out due to fuel vapors in the oil coming into the engine through the breather.

Customer: replied 1 year ago.
mike air cleaner without element just housing.. oil ok does not smell like fuel.. Seems to me air suction problem runs great on hyway. without air cleaner housing ...as you tighten housing starts running bad?
Expert:  Mike V. replied 1 year ago.

Sorry that's all I have for you on this. I am going to open it back up for the other experts. We have a couple of Nissan techs with a bit more experience that might be able to help out. Please DO NOT reply to me or it will lock it to me. Try to be patient, one is likely going to pick this up.

Expert:  jazzmaster replied 1 year ago.

hi,the pcv valve or hose may be clogged -upper engine area, mounted in intake manifold

Customer: replied 1 year ago.
Cannot find PVC valve on the V6 3.0 1987? Is there on ? Where ?
Expert:  jazzmaster replied 1 year ago.

it n is mounted in the intake manifold -it should be near the throttle body

Customer: replied 1 year ago.
Hi Looked around manifold ? Did not Find PVC valve..could you Draw a diagram about the location?tanks
Expert:  jazzmaster replied 1 year ago.

is is screwed into the intake manifold ,I dont have a daigram ,but follow the hoses ,it will be a 5/16 or 3/8 hose attached to it.

this doesnt look like a normal pcv valve ..jazzmaster .

Customer: replied 1 year ago.
eye will look 2morow for pvc fittging on maniflold thanks
Expert:  jazzmaster replied 1 year ago.

also,check the hose as well for being clogged ,,thank you ..jazzmaster

Expert:  jazzmaster replied 1 year ago.

If I have helped you please rate me positive and we can still continue if needed .

this is the only way I receive credit ,,thank you ..jazzmaster ..

Customer: replied 1 year ago.
still trying to find PVC valve? will look today &let you know Thanks
Expert:  jazzmaster replied 1 year ago.

ok, thank you ..jazzmaster ..

Customer: replied 1 year ago.
Hi Did not find PVC Valve ? The Strangest thing I ever seen Install air cleaner housing motor idles bad.with it off runs smooth
Whats up? thanks i will try anything
Expert:  jazzmaster replied 1 year ago.

if the pcv or hose to that are clogged this will cause the issue .as the system can't breathe right ..

see if this helps .the hose is either 5/16 or 3/8 in size and you need to look at all the hoses perhaps to find the pcv valve

the part number in the diagram is -11810

Customer: replied 1 year ago.
thanks 4 diagram will check car call you back on results byron
Expert:  jazzmaster replied 1 year ago.

you are welcome ,there will be a hose attached to the pcv valve with a clamp ..thank you ..jazzmaster ..