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rpmdiag, Tech and Instructor
Category: Chevy
Satisfied Customers: 7739
Experience:  Since 1975
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1988 chevy 454 in a diplomat motorhome changed plugs and

Customer Question

1988 chevy 454 in a diplomat motorhome changed plugs and wires and how it back fires so I think I got a couple of wires mixed up
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: ran good until I changed plugs and wires
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: looking up the fireing order and cap order
JA: Anything else you think the mechanic should know?
Customer: not now
Submitted: 11 months ago.
Category: Chevy
Expert:  rpmdiag replied 11 months ago.

Hi, welcome to Just Answer. I’m Ron and I’ll be helping you
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

The firing order is 18436572 clockwise. See attachment.

Thanks, Ron

Expert:  rpmdiag replied 11 months ago.

Just following up to see if you have any more questions, otherwise, please rate me 5 stars.

Thanks, Ron

Customer: replied 11 months ago.
fixed the problem before i received the answer i just had two wires switched but thank you anyway
Expert:  rpmdiag replied 11 months ago.

I still took the time to help you, this is not a free site:)

Thanks for you understanding.