JPKearney Posted February 20, 2014 Share Posted February 20, 2014 I have a question and I have noticed you have a far amount of knowledge with these vehicles so any help would be greatly appreciated. I have a 95 pathfinder 5 speed 3.0 ..... the problem - when I put any tough load on the truck if feels like it is studdering .... mostly happens in 3rd 4th and 5th if you try to accelerate to fast. If you drive really easly it doesnt do it. I have replaced plugs , wires , distrubator , rotar , fuel filter , ran seafoam through it. I'm wondering if my catalyst convertor could be clogged up or maybe an O2 sensor. Any ideas all help is greatly appreciated!!! Link to comment Share on other sites More sharing options...
ThaBigPerm Posted February 21, 2014 Share Posted February 21, 2014 Only under a load? Is there any racket from the engine when it does this under a load (rattling, pinging, or knocking)? If so, I'd suspect the ignition timing is too far advanced. Alternately it could be bad or contaminated fuel. I'd say old fuel too, but we know how fast Pathys go through fuel, so the odds of gas sitting for months in the tank are next to zero. Link to comment Share on other sites More sharing options...
Slartibartfast Posted February 21, 2014 Share Posted February 21, 2014 Is the check engine light on? Any busted vacuum lines? Link to comment Share on other sites More sharing options...
JPKearney Posted February 21, 2014 Author Share Posted February 21, 2014 No there isn't any rattling or pinging and as far as bad gas your right they do chug it so wouldnt think it was that plus she hasnt sat at all. No the check engine light isn't and and the vacuum lines are intact. Thank you for the replies Link to comment Share on other sites More sharing options...
JPKearney Posted February 21, 2014 Author Share Posted February 21, 2014 Where can I adjust the timing at? Link to comment Share on other sites More sharing options...
k9sar Posted February 21, 2014 Share Posted February 21, 2014 (edited) Check the timing. To adjust it, there's a bolt at the base of the distributor that, when loosened, will allow you to rotate the distributor to adjust the timing. For timing adjustment, get a timing light and hook to #1 sparkplug. Check the marks on the crankshaft pully. should be about 5 degrees BTDC. Someone else can chime in on how to read the marks, I don't have my FSB available at work. maybe it's 15 BTDC. Hell, I forget Edited February 21, 2014 by k9sar Link to comment Share on other sites More sharing options...
k9sar Posted February 21, 2014 Share Posted February 21, 2014 (edited) yes, it should be 15 degrees, not 5. Edited February 21, 2014 by k9sar Link to comment Share on other sites More sharing options...
Precise1 Posted February 21, 2014 Share Posted February 21, 2014 ^correct, @ ~800rpm B Link to comment Share on other sites More sharing options...
SpecialWarr Posted February 21, 2014 Share Posted February 21, 2014 Question: Just for kicks last night I went out and bought a timing light (wanted to get one for some time now) and checked the timing on the truck. There are seven marks on the pulley and each mark is about 3 degrees; is that correct? Link to comment Share on other sites More sharing options...
adamzan Posted February 21, 2014 Share Posted February 21, 2014 Each mark is 5 degrees. 0 5 10 15 20 25 30 Link to comment Share on other sites More sharing options...
ejin4499 Posted February 21, 2014 Share Posted February 21, 2014 what RPM are you trying to keep the engine at when you cruze? Link to comment Share on other sites More sharing options...
adamzan Posted February 21, 2014 Share Posted February 21, 2014 Try unplugging the o2 sensor and see if it runs better. If it does, you know what the problem is. Link to comment Share on other sites More sharing options...
Nefarious Posted February 21, 2014 Share Posted February 21, 2014 also, check the battery terminals and the fusible links. if there is not a good connection there then your truck can studder and hesitate under load. you will also want to check for a tight connector at the mass air flow sensor as these can come loose over time (you can bend them back tight again) and also make sure the MAF sensor element is clean (use maf cleaner on the element if it's dirty and DO NOT touch it with anything). Link to comment Share on other sites More sharing options...
ef9 Posted February 22, 2014 Share Posted February 22, 2014 Sounds like timing too advanced. Link to comment Share on other sites More sharing options...
JPKearney Posted February 24, 2014 Author Share Posted February 24, 2014 Thanks for the reply guys I'm going to check the timing today an see if that fixes the problem! Link to comment Share on other sites More sharing options...
k9sar Posted February 24, 2014 Share Posted February 24, 2014 of the 7 matks, 15 degrees is the middle one (see Adam's post) I love seeing people chime in with suggestions but don't let it get you confused. Make a list then check them out one by one until you find the problem. don't forget to post the solution once you are back to running again so that other's may benefit from your experience Link to comment Share on other sites More sharing options...
Precise1 Posted February 24, 2014 Share Posted February 24, 2014 also, check the battery terminals and the fusible links. if there is not a good connection there then your truck can studder and hesitate under load. you will also want to check for a tight connector at the mass air flow sensor as these can come loose over time (you can bend them back tight again) and also make sure the MAF sensor element is clean (use maf cleaner on the element if it's dirty and DO NOT touch it with anything). Some people have reported probklems with MAF cleaners. Most members here just uses a pure grade alcohol and a Q-tip without issue. B Link to comment Share on other sites More sharing options...
SpecialWarr Posted February 24, 2014 Share Posted February 24, 2014 Hahhhh....so that my truck is running 22 degrees is probably not a good thing then.... methinks I'll be changing that tonight more towards the 15 degree end of the spectrum.... plus or minus 2 degrees.... Thanks for the info adamzan! Link to comment Share on other sites More sharing options...
Jacob211 Posted February 26, 2014 Share Posted February 26, 2014 Same thing was happening to mine a week ago. First I did fuel filter. didnt help a thing but it was the original from 200,000 miles ago so it needed to go. Then I did your usual tune up, Plugs, Wires, Cap, and Rotor. Which had helped a little bit but not much, finally decided id throw a whole new distributor at it, and it fixed the problem. so if youve tried everything but that then id say its worth a shot. Link to comment Share on other sites More sharing options...
SpecialWarr Posted February 26, 2014 Share Posted February 26, 2014 My bad was assuming that the timing marks were 3 degrees each.... they are, as I have been told, 5 degrees each. And now my fuel consumption has gone down about 5 percent. Yay for NPORA and the gentle-folk on here. Word to the Precise 1. Adamzan and Don my homie at the dealership!! Thanks guys! Sent from my SGH-T999V using Tapatalk Link to comment Share on other sites More sharing options...
JPKearney Posted March 3, 2014 Author Share Posted March 3, 2014 Hey Guys finally got it figured out!!!! It was the Ignition coil and the Distributor .... replaced them bout as well as a Rotor, D-cap, plugs and plugs wires again and she is running great now. Thanks for the help and all the input. Jake Kearney Link to comment Share on other sites More sharing options...
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