I just noticed a 2 inch crack on my 1998 Frontier's exhaust manifold. What are the noticeable effects of having a leak? Do I loose power or gas mileage?? Instead of replacing the part can I weld the crack?
2007-04-29 13:04:08 · 8 answers · asked by photoeyedude 2 in Cars & Transportation ➔ Maintenance & Repairs
leaks in the exhaust manifold are hard on your valves and your hearing, could be welded by someone who knows how to weld cast iron but probably cheaper to get another one at the junkyard.
2007-04-29 13:15:52 · answer #1 · answered by mister ss 7 · 1⤊ 0⤋
Yes, you probably losing some mileage from what I can tell. I suggest investing in some higher quality manifolds or headers, newer and better headers usually give you better mileage. However I don't really suggest wielding it, could interfere with the air flow in it but I'm not sure.
2007-04-29 20:28:31 · answer #2 · answered by Kevin B 2 · 0⤊ 0⤋
replace the manifold with a header
2007-04-29 20:09:33 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You could try some JB Weld.
2007-04-30 00:51:40 · answer #4 · answered by Jozeewales 1 · 0⤊ 0⤋
you will get a false reading from you o2 sensor .
Any leak before the o2 sensors could could over fueling .
o2 reads oxygen more oxygen then it adds more fuel.
When it is not needed
Should just get a new one.
old could be warped cost you more in the long- run messing around.
auto tec...
2007-04-29 22:13:07 · answer #5 · answered by razlan 3 · 0⤊ 0⤋
louder noise, and you know you have a leak when you are driving and all of a sudden you start to drift to sleep from that monoxide that kicks in. Get it fixed quick
2007-04-29 20:08:35 · answer #6 · answered by eightballe 2 · 0⤊ 0⤋
you can have it welded closed depending on the metal
2007-04-29 20:13:34 · answer #7 · answered by thagame911@sbcglobal.net 3 · 0⤊ 0⤋
initially, you will hear it, long term you can cause some engine damage, and it wont pass smog.
2007-04-30 06:11:09 · answer #8 · answered by mdk68gto, ase certified m tech 7 · 0⤊ 0⤋