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Nissan Altima Engine Failures

500 messages,  Last post on Nov 29, 2009 at 8:42 PM

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#236 of 500 Re: exhaust ploblem [0506colix] by busiris Mar 26, 2008 (7:07 am)
Replying to: 0506colix (Mar 25, 2008 8:06 pm) So i took it to the dealer they put in a new Exhaust manifol catalyst and reprogram my ECM. I drove my car around for 30 minutes in city streets at about 50mph, got home and it was the same thing and same smell. I was woundering is it normal for it to get that hot to turn red or is there something wrong with my engine. thank you.         NO...The exhaust manifold should never be that hot under normal driving conditions....you still have a problem! Replies to this message: 0506colix (Mar 26, 2008 5:42 pm)
#237 of 500 Re: exhaust ploblem [0506colix] by winsan Mar 26, 2008 (10:45 am)
Replying to: 0506colix (Mar 25, 2008 8:06 pm) You may want to check your coolant level and the engine oil level. Make sure both are adequate. Replies to this message: 0506colix (Mar 26, 2008 5:52 pm)
#238 of 500 '04 2.5 liter spark plug damage by cisco2004 Mar 26, 2008 (4:38 pm)
hey folks, i am new here. Over the last 30,000 (approx) miles i have had the same problem twice. A spark plug gets damaged while driving.The first time i had 113k miles on it. The mechanic said the gap between the electrodes was reduced to a minimum. This was the #4 plug. He regapped it and i drove on for the next 30,000 miles. This weekend it happened again. I was out of town for the weekend, it misfired and i went to another mechanic. This mechanic shows me the plug and again, the plug no longer has a gap. But it was from the #1 plug and this time I buy 4 new plugs. Twenty miles down the road, it happens again. I get back to the mechanic, fuss a bit, and he takes a look. Again it's the #1 plug and the new plug is damaged. Now other mechanics there are looking and offering opinions. One of them grabs a magnet and runs it down the valve and goes fishing. He pulls out a small piece of loose metal that must have been the culprit. Now it drives fine like it always did. What gives? What is falling apart and how long before engine failure? Any thoughts? Replies to this message: electricdesign (Mar 26, 2008 5:13 pm) busiris (Mar 26, 2008 5:27 pm) busiris (Mar 26, 2008 5:16 pm)
#239 of 500 Re: '04 2.5 liter spark plug damage [cisco2004] by electricdesign Mar 26, 2008 (5:13 pm)
Replying to: cisco2004 (Mar 26, 2008 4:38 pm) This is a very common and well known problem with this engine, the "Power Valve" screws (also called the "butterfly screws) in the intake manifold come loose and fall out and get sucked into the engine. There is a recall on this. See if Nissan will honor your request, probably not since your car is so far out of warrenty. If you don't fix it right away, it can permanently damage your engine. To fix the problem, the upper intake manifold will have to be removed, then the remaining power valve screws will be visible (total of 8). All the screws must be removed and replaced with the new screws with sealing washers and locktite put on the threads of each screw, then reinstall all screws tight, then put everything back together. It's about a days work. Here is the link that tells you all about the Cat and the Butterfly screws:   http://www.b15sentra.net/forums/showthread.php?t=135241   Good Luck, E.D. in Sunny Florida Replies to this message: busiris (Mar 26, 2008 5:27 pm)
#240 of 500 Re: '04 2.5 liter spark plug damage [cisco2004] by busiris Mar 26, 2008 (5:16 pm)
Replying to: cisco2004 (Mar 26, 2008 4:38 pm) Without seeing the possible contaminent, its impossible to say for sure what it is. Could be from a broken spark plug.   What I can say is that if its been in the cylinder for any length of time, you most likely have cylinder wall damage that will come back to haunt you soon, along with possible valve damage.   Personally, I would visit a garage that could "scope" each cylinder using an optical scope that enters the cylinder through the spark plug hole to have all the cylinders examined for damage. It shouldn't be that expensive for a look-see. Or, you could do nothing and see what happens...after all, the engine has around 145K miles, if your post was accurate.   Foreign parts inside a combustion chamber are NEVER good news.   Good luck.
#241 of 500 Re: '04 2.5 liter spark plug damage [electricdesign] by busiris Mar 26, 2008 (5:27 pm)
Replying to: electricdesign (Mar 26, 2008 5:13 pm) Dude!   I liked your explanation a whole lot better than mine! And, best of all, it makes sense. Seems strange that a manufacturer would create such a setup with a moderate/high probability of failure..
#242 of 500 Re: exhaust ploblem [busiris] by 0506colix Mar 26, 2008 (5:42 pm)
Replying to: busiris (Mar 26, 2008 7:07 am) thank you for your feed back, I called the dealer today and made another appointment they said it was wired cuz the exhaust manifol was new. I felt it was losing power with the new manifol its lighter but it gets red hot.
#243 of 500 Re: exhaust ploblem [winsan] by 0506colix Mar 26, 2008 (5:52 pm)
Replying to: winsan (Mar 26, 2008 10:45 am) I checked both the coolant level and engine oil level and they are at normal level. The temperature guage inside stays half way it never passes the half way position but the manifol is glowing hot, thank you.
#244 of 500 It would not start...and after 2 weeks.... by sssp Mar 28, 2008 (6:21 pm)
FYI.....and posting so others will have the info if and when needed! New purchase Feb. 23, 2008 Altima SL....drove 2 weeks; would not start. Dealer kept for week and replaced starter on March 14 and car was picked up on Good Friday, drove out of town Saturday, and guess what? On Easter..it would not start. Had to be towed by wrecker to Dealer on Monday. ECM was replaced on 3/26 Wednesday....now Service Manager says there is a code showing up that it has a CLUTCH problem~?!? Funny...it's an automatic, 4 cylinder!! He wants to keep it until the middle of next week?~!? Engine....gremlins....gobblins....munchins....lemon? Any advice from knowledgeable gentlemen and ladies....please?~!? SP
#245 of 500 Hesitation when initially applying gas? by tltc Apr 10, 2008 (2:25 pm)
2008 Nissan Altima 2.5 with CVT-- brand new; on third tank of gas. Has anyone noticed hesitation when taking off from a stopped position? It almost feels as if the car isn't getting enough gas or if the gas is bad, which I know is fine because I have gone through two tanks and even tried the mid-grade gas when regular is all that's required. I do not recall the loaner car doing this (The dealership let me drive a new Altima while I was waiting for mine to be delivered.) I will be going to the dealership in the morning, but I am just curious to know if anyone else has had this problem and if it was resolved.

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