Manifolds turning red hot. had converters replaced and problem still exists. need help.
Dec 21, 2017 at 9:11 AM
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WRENCHTECH
✓Experienced Mechanic
20,760 POSTS
The problem is not the manifolds or converters. It is the engine not running properly. That will ruin your new converter in real short order.
You need to find out what the issue is with the engine. start out by having the codes read.
Dec 21, 2017 at 9:31 AM
BIG V
MEMBER
2 POSTS
Thanks.
Dec 21, 2017 at 9:33 AM
KHLOW2008
✓Experienced Mechanic
41,812 POSTS
Such problems should be due to a misfiring cylinder. When misfiring occurs, raw fuel is dumped through the exhaust and as the catalyst tries to burn off the fuel, it heats up resulting in the catalyst and manifold turning red hot.