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Miss fire on a u4 cyl 98 nissan
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toolman0007
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Sep 22, 2013, 9:02 AM
Post #1 of 12
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Miss fire on a u4 cyl 98 nissan
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I have a Nissan 1998 looking for info as to spark delivery. getting a misfire on number 4 cyl. it has had new cap,rotor,plugs,and wires put in it. unfamiliar with this car and don't have it front of me. but know the misfire is right because I scanned it several days ago.
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 22, 2013, 9:44 AM
Post #2 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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Nissan what?
What engine size? Don't just say 4 cyl.
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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.
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toolman0007
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Sep 22, 2013, 11:01 AM
Post #3 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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Hammer you crack me up sometimes it's a 2,5 and 4 cylinder I was not sure was waiting on that info myself
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 22, 2013, 11:08 AM
Post #4 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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OK, what car/truck are we dealing with?
Nissan what?
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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.
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toolman0007
User
Sep 22, 2013, 11:12 AM
Post #5 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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maxima
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Hammer Time
Ultimate Carjunky
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Sep 22, 2013, 11:18 AM
Post #6 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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Maybe you just need to go back to the car and get some accurate information. You are asking for very specific information about an engine but can't seem to supply accurate information.
They never made a 4 cylinder Maxima
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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.
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toolman0007
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Sep 22, 2013, 11:34 AM
Post #7 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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I now have the car here. was just relaying what I was being told. sorry for wasting your time it's a altima 4 door sdn.
there are no stickers or emblems indicating what it was
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Hammer Time
Ultimate Carjunky
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Sep 22, 2013, 11:42 AM
Post #8 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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Yeah, you got the engine size wrong on that too. It's a 2.4.
This just has a basic distributor type ignition system. Use a spark tester to see if you are getting spark on that cylinder. If you are and the plug isn't cracked, then do a compression test on that cylinder and verify injector pulse.
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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.
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toolman0007
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Sep 22, 2013, 11:45 AM
Post #9 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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thanks hammer will do that now
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Discretesignals
Ultimate Carjunky
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Sep 22, 2013, 11:46 AM
Post #10 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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Another thing to look out for is a leaking intake gasket on those, especially around the intake runner on number 4. Pretty common problem.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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toolman0007
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Sep 22, 2013, 2:04 PM
Post #11 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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compression is at 150, got spark, voltage to injector, with my stethoscope I'm not getting ticking on the injector until I bring the rpm's up a bit but it seems to be intermittent. possibility a week and or bad injector
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Discretesignals
Ultimate Carjunky
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Sep 22, 2013, 3:26 PM
Post #12 of 12
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Re: Miss fire on a u4 cyl 98 nissan
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What are the ohms on all the injector coils? Is your injector losing control or power when it doesn't sound like it is working?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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