Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Push-starting is bad for your cat (according to the Ford owner's manual)

basjoos · 07-29-2014, 11:15 AM

I was looking in my 97 Ford F150 owner's manual and it said that push-starting can damage the catalytic converter. How would this possibly occur? The reason I am curious about this is push-starting is the same as bump-starting as far as the engine is concerned and I've been bump-starting and push-starting my cars for decades without any catalytic converter problems.

07-29-2014, 11:15 AM	#1 (permalink)
basjoos Master EcoModder Join Date: Dec 2007 Location: Upstate SC Posts: 1,088 Aerocivic - '92 Honda Civic CX Last 3: 70.54 mpg (US) AerocivicLB - '92 Honda Civic CX Team Honda 90 day: 55.14 mpg (US) Camryglide - '20 Toyota Camry hybrid LE 90 day: 65.83 mpg (US) Thanks: 16 Thanked 677 Times in 302 Posts	Push-starting is bad for your cat (according to the Ford owner's manual) I was looking in my 97 Ford F150 owner's manual and it said that push-starting can damage the catalytic converter. How would this possibly occur? The reason I am curious about this is push-starting is the same as bump-starting as far as the engine is concerned and I've been bump-starting and push-starting my cars for decades without any catalytic converter problems. __________________ aerocivic.com