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1989 Nissan Pathfinder intermittently dies


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bushmangreg
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Dec 30, 2013, 8:10 AM

Post #1 of 11 (750 views)
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1989 Nissan Pathfinder intermittently dies Sign In

I have a 1989 Nissan pathfinder, v6, 4wd, carburetor, automatic transmission. About a year and a half ago, during the summer, it sometimes stalled/died while driving it. After it sat and cooled down for about 15 minutes, it would then run again. It suddenly stopped and has worked fine until just recently. It has started to do it again. It will die while driving down the street. It will start back up again, sometimes immediately, sometimes after sitting for 5-20 minutes. However, after it starts back up, it will only rev up to 3000 rpms. it will rev up to just past 3000 rpms, cut out, then rev back up, then cut out. It continues this cycle. After the truck sits for awhile, this issue goes away and it revs up fine past 3000 rpm's, which tells me it is probably thermal related. I am currently unemployed and don't have money to replace parts as a process of elimination. I am hoping that there is someone that has seen this problem before and find out what the most likely part/failure is


Hammer Time
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Dec 30, 2013, 8:16 AM

Post #2 of 11 (745 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

That truck didn't come with a carburetor. Are you sure about that?




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bushmangreg
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Dec 30, 2013, 8:17 AM

Post #3 of 11 (741 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

Yes, it has a carbonator for sure!! Thanks for asking.


Hammer Time
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Dec 30, 2013, 8:20 AM

Post #4 of 11 (738 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

Did you put it on there?




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



bushmangreg
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Dec 30, 2013, 8:25 AM

Post #5 of 11 (734 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

No, it was on the truck when I purchased it 7 years ago.


Hammer Time
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Dec 30, 2013, 8:27 AM

Post #6 of 11 (733 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

This truck was manufactured with a computer and fuel injection so if someone has Frankensteined it along the way, good luck trying to diagnose it.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



bushmangreg
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Dec 30, 2013, 8:41 AM

Post #7 of 11 (726 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

1989 pathfinder was manufactured with a carburetor. The following year in 1990 it received an upgrade and came with fuel injection.


Hammer Time
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Dec 30, 2013, 8:55 AM

Post #8 of 11 (724 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

No, not in the US it didn't. Not according to Alldata and that is factory supplied info. There was only one engine offered for that vehicle. It was the VG30i. The {i} meaning injected.




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Dec 30, 2013, 10:09 AM

Post #9 of 11 (712 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

He is probably confusing the TBI for a carb.







Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Hammer Time
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Dec 30, 2013, 10:15 AM

Post #10 of 11 (708 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

I'm sure he is. They have never made a carbed Pathfinder of any year.

Until he resolves that issue, I'm not going any further.




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Dec 30, 2013, 10:18 AM)


Discretesignals
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Dec 30, 2013, 10:19 AM

Post #11 of 11 (705 views)
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Re: 1989 Nissan Pathfinder intermittently dies [In reply to] Sign In

If it has an idle surge, you should look for vacuum leaks or low fuel pressure. You'll have to T a fuel pressure gauge into the supply side of the system to monitor fuel pressure.

Your engine is fuel injected. What looks like a carb is actually a throttle body injection unit. If you remove that metal cap in the middle of the throttle body, you'll see two fuel injectors that look like this:







Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Dec 30, 2013, 10:21 AM)




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