my 2004 altima 3.5 rattles at cold start around the intake at front of motor near the firewall.

Asked by Apr 06, 2012 at 10:17 PM about the 2004 Nissan Altima 3.5 SE

Question type: Maintenance & Repair

4 Answers

905

This is a tough one to answer with so may possible variables. I'd bring it to a Nissan dealer, leave it overnight, and let them see what happens after a cold start themselves. You might have to pay a diagnostic charge, but you'll also get the answer to your question! Could be heat shield,motor mounts, or even the exhaust system.

5

its most likely some part of your exhaust, i wouldent be surpised if it was your catalitic converter that is loose, considering nissan did a shitty job with there exhaust its easy to bottom out and break that cat

I was so happy to see your question here. I have the same problem in the same car and my mechanic has me terrified that the timing chain is about to blow, all based on the rattle. Like yours, it is only for a few seconds (about 10-30) on startup, especially on very hot days. DO NOT take it to the dealer. Four years ago I did that on a whim. The check engine light never came on and they never opened the hood but told me a new engine was essential. Been driving the car fine ever since with a new mechanic. Can anyone tell us about this rattling problem? Is it significant?

4,255

It's most likely timing chain noise. Be sure there's sufficient oil in the engine. I've done many of them when the plastic on the guides wears away the chain starts rubbing on the metal underneath.

Your Answer

Add photo

Related Questions

Altima

Looking for a Used Altima in your area?

CarGurus has 86,085 nationwide Altima listings starting at $1,795.

ZIP:

Search Nissan Altima Questions

Nissan Altima Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,840
#2 FordNut
FordNut
Reputation 1,160
#3 Cassie Sapphire
Cassie Sapphire
Reputation 590
View All

Related Models For Sale

Used Nissan Maxima
513 Great Deals out of 25,525 listings starting at $1,500
Used Honda Accord
1,244 Great Deals out of 79,083 listings starting at $969
Used Toyota Camry
1,510 Great Deals out of 101,221 listings starting at $700
Used Honda Civic
1,141 Great Deals out of 67,875 listings starting at $1,500
Used Nissan Sentra
801 Great Deals out of 54,039 listings starting at $2,000
Used Toyota Corolla
1,444 Great Deals out of 70,092 listings starting at $988
Used Hyundai Sonata
977 Great Deals out of 50,085 listings starting at $700
Used Chevrolet Malibu
1,182 Great Deals out of 81,012 listings starting at $2,495
Used Kia Optima
580 Great Deals out of 30,674 listings starting at $1,250
Used Chevrolet Impala
971 Great Deals out of 36,679 listings starting at $1,800
Used Nissan Murano
507 Great Deals out of 22,649 listings starting at $1,499

Used Cars For Sale

2017 Nissan Altima For Sale
31,499 listings starting at $14,372
2016 Nissan Altima For Sale
56 Great Deals out of 19,050 listings starting at $12,800
2015 Nissan Altima For Sale
481 Great Deals out of 10,505 listings starting at $8,500
2014 Nissan Altima For Sale
219 Great Deals out of 5,687 listings starting at $6,995
2013 Nissan Altima For Sale
265 Great Deals out of 5,979 listings starting at $3,900