Exhaust Manifold Leak Diagnosis - Nissan Forum

 
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#1 Old Nov 22nd, 2005, 08:53 AM
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Question Exhaust Manifold Leak Diagnosis

I have a 95 Pathy with 75K miles. I suspenct I have the common exhaust manifold leak problem (slow acceleration, idle has a subtle miss when cold, and the ticking noise when idling). I would like to do sometype of diagnosis to identify that this is indeed the problem I have. Is there some procedure I can follow to 100% identify if I have the leak? Also I have heard that Nissan offers a free warranty service up to 100K miles to fix this problem because it is a factory defect. Is this true? Has anybody had any luck with Nissan of America with this? If so any tips? Thanks!
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#2 Old Nov 23rd, 2005, 11:34 AM
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Quote:
Originally Posted by dwj119
I have a 95 Pathy with 75K miles. I suspenct I have the common exhaust manifold leak problem (slow acceleration, idle has a subtle miss when cold, and the ticking noise when idling). I would like to do sometype of diagnosis to identify that this is indeed the problem I have. Is there some procedure I can follow to 100% identify if I have the leak? Also I have heard that Nissan offers a free warranty service up to 100K miles to fix this problem because it is a factory defect. Is this true? Has anybody had any luck with Nissan of America with this? If so any tips? Thanks!
I may have the same issue on my '95 Pathfinder. I will be interested to see if anyone has some suggestions. About the only difference is my PF has 172K miles. Have you looked into the procedure for replacing the manifold? I am wondering how intense it will be.
#3 Old Sep 21st, 2007, 05:03 PM
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I had the manifold replaced due to the bolts breaking, and now after about a year, it is making one hell of a whine up front, i can't figure it out, took it in and my mechanic figures it is the manifolds again, I'm pissed

my pathy is a tank, but shes also a powerless bitch, pretty sad when I can't keep up to a piece of shit exploder goin up a hill
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#4 Old Sep 22nd, 2007, 08:49 PM
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the manifolds on those leak a lot. you can only listen carefully while some one gives it a little bit of gas. Then remove the heat shield and check it out.
#5 Old Sep 22nd, 2007, 08:54 PM
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I dont want to have to fix the manifolds again..plus the engines ticking now, so much for the nissan outlasting my ford and chev
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#6 Old Sep 25th, 2007, 08:39 PM
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The problem is that the studs break off and cause leaks. Use a flashlight and get inside the fenderwell to examine the manifold studs to see how many you're missing.

Thorley and Pacesetter both make bolt-on headers for 87-95 Pathfinders. Thorleys are really nice but spendy, Pacesetters are cheap and sometimes tough to install.

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'88 Pathfinder: 6" of lift, 33x13.50 Swamper LTB's, Rancho 9000's, L&P Stage 3 steering system, K&N, Pacesetter headers and 2.5" exhaust, Lock-Right locker, 110A alty and electric fan swap, dual batteries, 700W+ worth of PIAAs, etc.
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