Go Back   Infamous Nissan - Hardbody / Frontier Forums > Model Specific > Hardbody Forum (D21)

Reply
 
Thread Tools Display Modes
Old 10-21-2020, 04:45 AM   #21
XoXSciFiGuy
 
XoXSciFiGuy's Avatar
 
Join Date: May 2017
Location: Auburn, WA
Posts: 2,905
Vehicle: 1997 D21 King Cab XE 2WD, 1998 Pathfinder.
Thanks: 185
Thanked 512 Times in 465 Posts
Default

I definitely see the PCV valve in both pictures. In the second picture, it's the valve installed near the bottom of the picture, center of the picture, the one with the single wire clamp on the hose. Big hose, just there under the spark plug wires.

If you replace it, don't re-use that single wire clamp thing. Put on a regular screw clamp. Looks pretty old (the PCV valve.) I would change out the hose as well. Just use generic hose off the roll at the parts store. Cheaper.

I agree that a stuck or leaking PCV valve probably wouldn't cause a complete stall out.

Sooner or later...everyone that owns an older Nissan truck with the straight Throttle Body Injection system is either going to have to switch to the Weber carb kit...or hope and pray someone, somewhere....starts making aftermarket TBI systems that come complete with all the goodies that go ON them.

I got rid of my 89 because I was tired of chasing all the little problems associated with that system. I don't think anyone at Nissan engineering thought in their wildest dreams that those systems would be asked to survive driving on them for forty years or more. And...they were being asked to somehow meet ridiculous USA emissions standards...and sometimes they just had to come up with a fix that worked. It was never a perfect system and most of them went at least 20 years without too many major problems. But classic Nissan owners passed that point a long time ago.

At least Weber came up with a permanent solution, but it's $500 to do it and you will lose a few miles per gallon in mileage.
__________________

1997 King Cab XE, 5-sp, canopy, AC/PS, KA24E, 125,000 miles. Need a technical manual? Drop me a message. Chilton's for amateurs.
XoXSciFiGuy is offline   Reply With Quote
Old 10-21-2020, 04:52 AM   #22
AB3K
 
Join Date: Oct 2020
Location: California
Age: 25
Posts: 44
Vehicle: 1986.5 Nissan Hardbody
Thanks: 1
Thanked 3 Times in 3 Posts
Default

Quote:
Originally Posted by XoXSciFiGuy View Post
I definitely see the PCV valve in both pictures. In the second picture, it's the valve installed near the bottom of the picture, center of the picture, the one with the single wire clamp on the hose. Big hose, just there under the spark plug wires.

If you replace it, don't re-use that single wire clamp thing. Put on a regular screw clamp. Looks pretty old (the PCV valve.) I would change out the hose as well. Just use generic hose off the roll at the parts store. Cheaper.

I agree that a stuck or leaking PCV valve probably wouldn't cause a complete stall out.

Sooner or later...everyone that owns an older Nissan truck with the straight Throttle Body Injection system is either going to have to switch to the Weber carb kit...or hope and pray someone, somewhere....starts making aftermarket TBI systems that come complete with all the goodies that go ON them.

I got rid of my 89 because I was tired of chasing all the little problems associated with that system. I don't think anyone at Nissan engineering thought in their wildest dreams that those systems would be asked to survive driving on them for forty years or more. And...they were being asked to somehow meet ridiculous USA emissions standards...and sometimes they just had to come up with a fix that worked. It was never a perfect system and most of them went at least 20 years without too many major problems. But classic Nissan owners passed that point a long time ago.

At least Weber came up with a permanent solution, but it's $500 to do it and you will lose a few miles per gallon in mileage.
I might be mistaken, but considering im in california, I think weber is out of the question.
AB3K is offline   Reply With Quote
Old 10-21-2020, 10:53 AM   #23
jp2code
Software Developer
 
jp2code's Avatar
 
Join Date: Dec 2011
Location: Longview, TX [USA]
Age: 51
Posts: 10,095
Vehicle: 94 LB 2x4 Manual VG33e
Thanks: 1,602
Thanked 1,391 Times in 1,226 Posts
Default

Quote:
Originally Posted by AB3K View Post
I might be mistaken, but considering im in california, I think weber is out of the question.
Correct.

Can you post the VIN for your truck? It should be on a plate, visible from outside of the vehicle while looking through the windshield.

With the VIN, we can tell you exactly what year model you have.
__________________
Joe (not a mechanic!) Don't have an account? EMAIL ME
Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Walk-through: Checking Nissan Trouble Codes
1994 VG30E to VG33E with H256 Cams

jp2code is offline   Reply With Quote
Old 10-21-2020, 04:28 PM   #24
AB3K
 
Join Date: Oct 2020
Location: California
Age: 25
Posts: 44
Vehicle: 1986.5 Nissan Hardbody
Thanks: 1
Thanked 3 Times in 3 Posts
Default

Quote:
Originally Posted by jp2code View Post
Correct.

Can you post the VIN for your truck? It should be on a plate, visible from outside of the vehicle while looking through the windshield.

With the VIN, we can tell you exactly what year model you have.
AB3K is offline   Reply With Quote
Old 10-21-2020, 05:02 PM   #25
Deerhurst
4/86 SE-V6 2 tone 4x4 HB
 
Deerhurst's Avatar
 
Join Date: Apr 2013
Location: Oregon
Posts: 7,018
Vehicle: 1986.5 Hardbody
Thanks: 873
Thanked 816 Times in 746 Posts
Default

The PCV is on the breather from the valve cover. It'll thread into the intake plenum. If you have enough unmetered air itll have issues.
__________________
1986.5 SE-V6 4X4 D21 Hardbody
Pacesetter Long Tube Headers
Morimoto Mini D2S HID Projectors and Hella 500s
VG33i
Deerhurst is offline   Reply With Quote
Old 10-21-2020, 06:00 PM   #26
AB3K
 
Join Date: Oct 2020
Location: California
Age: 25
Posts: 44
Vehicle: 1986.5 Nissan Hardbody
Thanks: 1
Thanked 3 Times in 3 Posts
Default

Quote:
Originally Posted by Deerhurst View Post
The PCV is on the breather from the valve cover. It'll thread into the intake plenum. If you have enough unmetered air itll have issues.




so i took it off, and it looked a little dirty. i cleaned it up and it looked like this,and i put it back on.



something killed my battery over night. going to charge and see if cleaning the pcv will change anything.
AB3K is offline   Reply With Quote
Old 10-21-2020, 06:12 PM   #27
jp2code
Software Developer
 
jp2code's Avatar
 
Join Date: Dec 2011
Location: Longview, TX [USA]
Age: 51
Posts: 10,095
Vehicle: 94 LB 2x4 Manual VG33e
Thanks: 1,602
Thanked 1,391 Times in 1,226 Posts
Default

Quote:
Originally Posted by AB3K View Post
JN6ND16SXH5004345

The image was hard to read. Did I get any of it wrong?

__________________
Joe (not a mechanic!) Don't have an account? EMAIL ME
Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Walk-through: Checking Nissan Trouble Codes
1994 VG30E to VG33E with H256 Cams

jp2code is offline   Reply With Quote
Old 10-21-2020, 06:16 PM   #28
AB3K
 
Join Date: Oct 2020
Location: California
Age: 25
Posts: 44
Vehicle: 1986.5 Nissan Hardbody
Thanks: 1
Thanked 3 Times in 3 Posts
Default

Quote:
Originally Posted by jp2code View Post
JN6ND16SXH5004345

The image was hard to read. Did I get any of it wrong?

Sorry, it is a littl dirty. you got the W wrong though. it is as follows,

JN6ND16SXHW004345

also, where is it you can look up vin number information??

edit: based off that photo you put, my truck was manufactured in japan...?
AB3K is offline   Reply With Quote
Old 10-21-2020, 08:03 PM   #29
jp2code
Software Developer
 
jp2code's Avatar
 
Join Date: Dec 2011
Location: Longview, TX [USA]
Age: 51
Posts: 10,095
Vehicle: 94 LB 2x4 Manual VG33e
Thanks: 1,602
Thanked 1,391 Times in 1,226 Posts
Default

Quote:
Originally Posted by AB3K View Post
Sorry, it is a littl dirty. you got the W wrong though. it is as follows,

JN6ND16SXHW004345

also, where is it you can look up vin number information??

edit: based off that photo you put, my truck was manufactured in japan...?
The image I attached is a screenshot from the General Information section of the 1994 Service Manual, specifically page GI-16.

Yes, your truck was manufactured in Japan.

Here is a snapshot from the 1989 Service Manual:

Attached Images
File Type: jpg d21_truck_1989_GI14.jpg (62.5 KB, 15 views)
__________________
Joe (not a mechanic!) Don't have an account? EMAIL ME
Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Walk-through: Checking Nissan Trouble Codes
1994 VG30E to VG33E with H256 Cams

jp2code is offline   Reply With Quote
Old 10-21-2020, 08:06 PM   #30
AB3K
 
Join Date: Oct 2020
Location: California
Age: 25
Posts: 44
Vehicle: 1986.5 Nissan Hardbody
Thanks: 1
Thanked 3 Times in 3 Posts
Default

Quote:
Originally Posted by jp2code View Post
The image I attached is a screenshot from the General Information section of the 1994 Service Manual, specifically page GI-16.

Yes, your truck was manufactured in Japan.

Here is a snapshot from the 1989 Service Manual:

sweet. thats pretty cool.

so after I cleaned and reeinstalled the pcv valve, it's having the same issue. I made a video.

https://vimeo.com/470739342
AB3K is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 05:51 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.