Lunartic Posted February 14, 2007 Share Posted February 14, 2007 1995 Pathfinder 350000 kms. and runs like a charm>>> until today! Driving to work in this lousey weather that we are having right now when I got to a stop sign half way to work,( driving 30 miles ). I heard a ticking sound coming from engine compartment. It seems to get a little louder at an idle, and when I speed up it sounds like it goes away because it sounds like its ticking increases as rpm increases but disappears. Please fellas and ideas would be much appreciated. :help: Link to comment Share on other sites More sharing options...
k9sar Posted February 14, 2007 Share Posted February 14, 2007 lifters stuck... broken manifold studs... could be a few things Link to comment Share on other sites More sharing options...
aries247 Posted February 14, 2007 Share Posted February 14, 2007 it's either an exhaust leak at the manifold which most people on the forum will say to install headers. or you have a valve ticking. i have the same tick on the drivers side. i will be installing headers when money allows and adjusting the valves within the next couple weeks. Link to comment Share on other sites More sharing options...
Guest SuperSon Posted February 14, 2007 Share Posted February 14, 2007 it's either an exhaust leak at the manifold which most people on the forum will say to install headers. or you have a valve ticking. i have the same tick on the drivers side. i will be installing headers when money allows and adjusting the valves within the next couple weeks. Would you mind doing a how-to on that valve adjustment .pics optional Link to comment Share on other sites More sharing options...
Guest SuperSon Posted February 14, 2007 Share Posted February 14, 2007 lifters stuck... broken manifold studs... could be a few things What would cause it to get stuck and what needs to be done when its stuck? Thanks Link to comment Share on other sites More sharing options...
nissandoms47 Posted February 14, 2007 Share Posted February 14, 2007 they're hydraulic lifters, they do wear out overtime especially with a lot of miles. try pouring a bottle of seafoam in the crankcase and running it for about 100 miles then changing the oil and see if that helps it. Link to comment Share on other sites More sharing options...
mws Posted February 15, 2007 Share Posted February 15, 2007 Is it worse when cold and then slowly gets better? (likely broken exhaust stud) - or - Worse right at start up then at some point quickly gets better? (likely a lifter issue) - or - Never really changes? Or very dependent on throttle position? Link to comment Share on other sites More sharing options...
Lunartic Posted February 16, 2007 Author Share Posted February 16, 2007 Hi and thanks for the reply When I start it up it is there and seems to go away when I bring it up to about 2500rpm or maybe it is that I can't hear it now with a loud engine. After i drive it for about 40 minutes or so ita little louder, but still there and like I say, it seems to go away when i rev it up but comes back @ about 1300rpm then idles down to about 750/800rpm and idles fine but with this ticking sound. It's for sure in the rocker area drivers side as I tried the ole screwdriver to the ear trick. Link to comment Share on other sites More sharing options...
mws Posted February 16, 2007 Share Posted February 16, 2007 If it is an exhaust leak, it will get louder at larger throttle openings at the same rpm. Sounds like yours isn't doing that, so a sticky or bleeding down lifter is suspect. Try changing the brand of oil. In my old 240SX, I had a lifter tap while using Castrol GTX. Switched to Mobil 1 and it went away... Can't for sure explain why. Link to comment Share on other sites More sharing options...
Lunartic Posted February 19, 2007 Author Share Posted February 19, 2007 REALLY>>> I've been using this Castrol GTX 5w 30 for years and never heard of that. It seems to go away then its back at another time. Link to comment Share on other sites More sharing options...
mws Posted February 19, 2007 Share Posted February 19, 2007 Yeah, really. I cannot explain it... I had considered Castrol one of the best dino oils available. But my experience showed it tended to lose viscosity pretty quickly in that application. Within 500-1000 miles after changing the oil, the problematic lifter would start tapping away again. It would stay silent with Mobil 1 for at least 5K miles. Doesn't the '95 recommend 10w30 or 10w40 oil? If so, repair may be as simple as to revert to a heavier oil. Link to comment Share on other sites More sharing options...
Simon Posted February 19, 2007 Share Posted February 19, 2007 No....the 95 recommends 5w30 for a HUGE temperature range, although, in warmer climates, 10w30 is also allowed. Might want to try 10w30 as mws suggested, as it could help your issue. Link to comment Share on other sites More sharing options...
mws Posted February 19, 2007 Share Posted February 19, 2007 If it is cold where you are, might I suggest Mobil 1 or other synthetic 10w-30? It will flow better at cold temps so it will not cause any excess wear at start up. With as many miles as you have, a bleeding down lifter would not be unusual. The other possibility is a plugging up/sticky lifter. Again, running some high quality synthetic should help as they generally have far superior additive packages and will clean out gummy deposits better. Link to comment Share on other sites More sharing options...
Simon Posted February 19, 2007 Share Posted February 19, 2007 On that note as well, try Seafoam. IF it's a sticky lifter, Seafoam should clear it up. Link to comment Share on other sites More sharing options...
Guest SuperSon Posted February 19, 2007 Share Posted February 19, 2007 excuse all my questions guys coz id rather hear from pathy owners than going by the manufacturers site. Will seafoam hurt anything if applied even if theres no sticky lifters? kinda like a preventative maintenance. also is there a specific brand recommended or seafoam is seafoam? Thanks all!!! Link to comment Share on other sites More sharing options...
Simon Posted February 19, 2007 Share Posted February 19, 2007 Seafoam is seafoam. It won't hurt anything, it basically just cleans out your engine. Carbon deposits and sludge buildup. It's a good thing. The only thing that could POSSIBLY be an issue, is if the sludge in your engine is slowing/preventing an oil leak, the seafoam will clean that out. Chances are, though, that won't be an issue. Link to comment Share on other sites More sharing options...
Guest SuperSon Posted February 20, 2007 Share Posted February 20, 2007 Thanks man...ill give it a try . -bounce- Link to comment Share on other sites More sharing options...
adamzan Posted February 20, 2007 Share Posted February 20, 2007 My 93 when it was on the road, ran on 20w50 in the summer and 15w40 in the winter in ottawa. Never once a problem with the engine and its at 340000kms. Link to comment Share on other sites More sharing options...
Lunartic Posted February 23, 2007 Author Share Posted February 23, 2007 Ok guys here it is. I had changed the oil and replaced it with 5w30 as well to top it up I used this stuff here in Ont. called CD2Maxx a detergent oil cleaner. Then I used some Lucas fuel treatment to a tank and gave her a good hard run and it went away after about 150k. >>> Dunno :confused: maybe carbon built up in and around the hydraulic lifters. Thanks for the ideas fellas...... Link to comment Share on other sites More sharing options...
mws Posted February 23, 2007 Share Posted February 23, 2007 Glad to hear it! :cool2: Link to comment Share on other sites More sharing options...
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