2000 altima no.4 cyl. misfire on idle - Nissan Forum
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#1 Old Feb 18th, 2004, 11:23 PM
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2000 altima no.4 cyl. misfire on idle

my 2000 altima 4 cyc misfires on no.4 when idling,changed plugs.wires ,cap,rotor. checked compression 165pds ran inj cleaner code misfire help please
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#2 Old Feb 19th, 2004, 01:19 AM
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hmmm...all the wires are hooked up correctly of course, right? are the plugs gapped correctly?

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#3 Old Sep 23rd, 2004, 07:32 PM
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Originally Posted by the hooker
my 2000 altima 4 cyc misfires on no.4 when idling,changed plugs.wires ,cap,rotor. checked compression 165pds ran inj cleaner code misfire help please
could be internal coil misfire. remove dist cap and look for signs of jumped spark on the coil. hope this helps.
#4 Old Oct 6th, 2004, 01:38 AM
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me too

my 97 nissan harbody started doing the same thing, only right about 2k rpm.
Started out as egr code, found vacuum leak on egr and fixed it, egr code went away but misfire on cyl 4 partial throttle low load now, obdII only says misfire cyl # 4.....grrrrrr.......could my egr be opening too soon? and if so why would it only cause misfire on cyl 4?
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#5 Old Jan 23rd, 2008, 02:01 PM
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Lightbulb

I just had the same issue on my 99 Altima. Although I have the same problem that motorider 475 had with the hesitation at 2000rpm (EGR related) the fix for the misfire was replacing the intake manifold gasket. It had become brittle and cracked.

I heard one way to diagnose this is to spray some carb cleaner near the #4 cyl intake manifold gasket and see if the idle changes (because it temporarily changes the mixture). I never tried it though.
#6 Old Feb 14th, 2008, 03:45 PM
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The carb cleaner check works. One quick spray between the manifold and the engine housing by cylinder 4, and the engine revs. I have the same P0304 error on my '00 Altima (second time in ~3 years). Try searching google for "altima P0304". Pretty much the entire first page comes back with the intake manifold gasket issue. It seems that this particular engine ('99-'01) suffers from somewhat of a design defect that causes the gasket to get baked and prematurely fail due to heat degradation. Always happens in the same place. The first time, I had the dealer fix it for ~$600. I'll be d@mned if I'm going to pay them for it again. I'll do it myself this time.
#7 Old Feb 14th, 2008, 10:43 PM
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also do pcv valve if replacing the gasket

If the manifold gasket is leaking ,its a cheap fix when its a DIY job. Gasket is about $15-20 and takes a few hours to change . Buy a PCV valve at the same time ,because its behind the engine and difficult to do otherwise. Also the PCV valve if it fails in a higher mileage car will cause high crankcase pressure . That pressure will force oil past the distributor shaft seals and ruin a distributor .
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#8 Old Jun 19th, 2009, 01:57 AM
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Question 00 Altima Misfire

I got a 00 Altima that seems to have a misfire. I already have changed spark plugs, spark plug cables, fuel injectors, fuel filter. The last thing would be the intake manifold. Am I right or can it be something else?:confused
#9 Old Jun 19th, 2009, 11:23 PM
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You aren't confused . The intake for a miss would be the next point after that but to make sure its an intake leak try a simple test. While the engine is running ,spray some carb cleaner or starting fluid along the edge of the gasket areas to see if there is a change in idle. If it does make a change you've verified the problem. But I would do the gasket anyway . I just bought a gasket kit along with a pvc to do mine , for under $20 at a local parts store. Mine gasket change is preventative maintenance. Unfortunately if your issue doesn't go away you will have to suspect the distributor itself or if lucky it could just need a cap and rotor.

Last edited by Kraut-n-Rice; Jun 19th, 2009 at 11:24 PM. Reason: spelling
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#10 Old Jun 23rd, 2009, 11:24 PM
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The Misfire doens't seem to be the Intake.

I already tried spraying some starting fluid around the 4 manifolds, but it makes no difference when you spray it on. So what would be next Dist. cap or the whole distriburator.
#11 Old Jun 24th, 2009, 09:39 PM
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Quote:
Originally Posted by altimanum1 View Post
I already tried spraying some starting fluid around the 4 manifolds, but it makes no difference when you spray it on. So what would be next Dist. cap or the whole distriburator.

I would try swapping a known good distributor to isolate the problem . Do you know anybody near you with a 1999 to 2001 Altima ? Switch it out and see if the miss goes away.
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#12 Old Jun 28th, 2009, 08:13 PM
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Keep havin problems with the misfire and something else..

After I spray some starter fluid near the intake and dind't notice a difference I decided to leave it alone. Later on I went to the car to move from my backyard and it started, but the next day when I found someone to let use their distributer the car din't want to start at all. my first thought was the distributer was bad. So I decided to remove it and I installed the new distributer and the same problem, The car didn't even want to start. So now i know it's not the distributer, spark plug cables, dist. cap, or fuel filter so was left. So regarding the car not wanting to start, what can It be a sensor? i know it's not any of the fuses cause i already checked them all.
#13 Old Jun 28th, 2009, 11:59 PM
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Quote:
Originally Posted by altimanum1 View Post
After I spray some starter fluid near the intake and dind't notice a difference I decided to leave it alone. Later on I went to the car to move from my backyard and it started, but the next day when I found someone to let use their distributer the car din't want to start at all. my first thought was the distributer was bad. So I decided to remove it and I installed the new distributer and the same problem, The car didn't even want to start. So now i know it's not the distributer, spark plug cables, dist. cap, or fuel filter so was left. So regarding the car not wanting to start, what can It be a sensor? i know it's not any of the fuses cause i already checked them all.
Spray it toward the bottom of the #4 intake runner they always seem to come apart @ the lower corner on bottom. Also get a stehtoscope on tube to listen for an air leak...It's there I bet my nuts on it!
#14 Old Jun 29th, 2009, 01:29 PM
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I would bet on the intake leak too.
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#15 Old Jun 30th, 2009, 11:44 PM
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I charge 1/2 the price the dealer does...$500 including parts and labor!
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