Question about 1991 Nissan Pickup

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1991 nissan pickup 4 cyl runs rough at idle misses?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: error code 51 (injector circuit) on 1994 nissan se v6 pickup

I would start by checking the resistance of all of the injectors. I saw this happen last week, I had a new injector that was reading low ohms and it was making two cylinders misfire. Replace the new one with a another new one and both cylinder ran good. I dont know what the ohm value of your injectors should be but I would want at least 10 ohms, All of them will be about the same except the bad one..I did a web search on your problem and it was covered at several places.

Posted on Oct 02, 2008

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SOURCE: `91 Nissan D21 4 cyl MT Pickup won't idle when cold

sounds like the clutch isnt engaging properly in the situations you described. may need to check fluid levels if there ok. then may need to get serviced or checked at least

Posted on Mar 20, 2009

emissionwiz
  • 76673 Answers

SOURCE: nissa pickup wont idle at all

Here are the most common causes of surges, stalls at stops, low erratic idle speed and stall, rough idle and engine hesitation, it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Mar 25, 2009

  • 21 Answers

SOURCE: on a 1991 nissan pickup 4 cyl. where is the pcv

The PCV valve connects the crankcase to the intake manifold from a location more-or-less opposite the breather connection. Translation - The PCV valve on your engine is threaded into the intake manifold.

Sorry I can't find a picture to show you.

Posted on Sep 16, 2009

Mr BrokRench
  • 1623 Answers

SOURCE: 85 nissan pickup runs rough at idle

you may have a carbon buildup problem in the egr system, i would check this and the hoses for leaks first

Posted on Sep 19, 2009

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On a 1991 nissan pickup 4 cyl. where is the pcv valve located....


The PCV valve connects the crankcase to the intake manifold from a location more-or-less opposite the breather connection. Translation - The PCV valve on your engine is threaded into the intake manifold.

Sorry I can't find a picture to show you.

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TRUCK CUTS OFF WHEN I GET READY TO STOP.


CHECK THE CATALITIC CONVERTER , THAT'S WHERE I WOULD START! COULD BE STOPPED UP.

Jun 22, 2009 | 1991 Nissan Pickup

1 Answer

`91 Nissan D21 4 cyl MT Pickup won't idle when cold


sounds like the clutch isnt engaging properly in the situations you described. may need to check fluid levels if there ok. then may need to get serviced or checked at least

Mar 20, 2009 | 1991 Nissan Pickup

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