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1999 olds bravada misfires a couple of times before starting

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  • Cars & Trucks Master
  • 2,785 Answers

Hello Angela Hylton,

I always go for the fire, fuel & air first... but it starts... so
that's a really great indication... Could just need some fresh spark plugs... (ACDELCO R44LTS6) or a cold start valve ...

(get your OBD codes read FREE (See below).

~~ 4.3L V6 Plugged EXHAUST:

I've never found an elegant way to prove it...
So we'll just jump right into...

GET some liquid wrench Penetrating Oil and
soak the EXHAUST to CATALYTIC converter bolts
really well (couple of times).

If YOU OPEN the exhaust and the engine runs smooth...
you have found a PROBEM that will do both thing you are experiencing...

Now you have to figure if it is the CAT collapsing or a
MUFFLER BAFFLE blocking the out-flow.

happened to me twice... but I'm pretty old)
one converter & one muffler))

FREE... (
to get you in the door)

Might be easier just to take it to a muffler shop...
have them run your engine codes...

If you live in CALIFORNIA... we have DIFFERENT
parts, costs & requirements (of course).

Somebody's BROTHER-IN-LAW is getting rich)).

But look up your prices on line... FIRST.
(know your prices BEFORE going in).

Hope this helps!!,1999,bravada,4.3l+v6,1356869,exhaust?

1999 OLDSMOBILE BRAVADA 4 3L V6 Catalytic Converter RockAuto

1999 OLDSMOBILE BRAVADA 4 3L V6 Muffler RockAuto

More Information for ACDELCO R44LTS6

99,bravada,4.3l+v6, idle air valve
1999 OLDSMOBILE BRAVADA 4 3L V6 Idle Air Control IAC Valve RockAuto

Posted on Dec 03, 2016


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SOURCE: 2000 Bravada: How do I program the garage door opener in my 1999...

Thee best source of information can be found at
Then select the program homelink hyperlink.
The procedure from the manufacturor is more accurate and informative than that GM provides.
Good luck

Posted on Apr 28, 2010

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