I have noticed a slight rattle underneath my car which I believe is the heat shield on the cat coverter. It only happens during cold starts and rattles for maybe 2 minutes if that. My question is can I tighten this part down or do I just need to go ahead and replace it if i want the problem solved? Thanks for all advise
The Car is : 1999 GMC Jimmy 4x4 with the 4.3L Vortec
2007-04-06 11:18:00 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
The shield is welded to the cat. If you reweld it, it will just break loose again. GM's fix is to put two large hose clamps around it to hold it tight. They'll last longer than those little tack welds.
2007-04-06 14:20:27 · answer #1 · answered by Nomadd 7 · 0⤊ 0⤋
Depends if the heat shield is secured by bolts or not. Most heat shields on cat converters are part of them. Get underneath and check it out to see if it has bolts. If it doesn't then an exhaust shop would be a good place to take it. Sometimes just a small tack weld can secure something minor. I'd wait until the engine is cooled off before you start climbing under it. Peace.
2007-04-06 11:30:59 · answer #2 · answered by Bryan A 3 · 0⤊ 0⤋
It may be very difficult to get it tight enough, so it may still rattle or start rattling again soon after. Don't know about over there, but in England we have a product which is a DIY hose clip which comes as a coil with 7 fittings so you can make your own size one up to whatever size you like. It's great for easy CV boot clips, and I've used it for fixing a cat heat shield too like you're trying to do!
2016-05-18 23:47:33 · answer #3 · answered by meredith 3 · 0⤊ 0⤋
depends on how the heat sheild is held in place.... if it bolts on - sure... unless, of course, the bolt holes are stripped out.... then you have to replace...
2007-04-06 11:21:15 · answer #4 · answered by Leatherman_Craig 3 · 0⤊ 0⤋