Author Topic: Olds Intrigue Misfire  (Read 6232 times)

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Olds Intrigue Misfire
« on: December 06, 2007, 07:29:38 PM »
I have a 99 oldsmobile intrigue with a 3.5 liter V6 that repeatedly misfires on cylinder 5.  At least that is the error code that comes up.  How can I find out what cylinder is number 5?  It doesn't have spark plug wires, it's coil is right over the plugs.  Thanks in advance for the help.

Linkback: http://www.trustmymechanic.com/forum/b1/olds-intrigue-misfire/16121/

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discretesignals

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Re: Olds Intrigue Misfire
« Reply #1 on: December 06, 2007, 08:12:09 PM »
Interesting to note that the 3.5L is basically a 4.0L Aurora engine with two back cylinders lobbed off.  The Aurora is based off of the Northstar 4.6L found in the Caddy. The 3.5L is  nicknamed the "Shortstar".  

The left (front) bank of cylinders are number 2-4-6 and the right (rear) bank cylinders are 1-3-5.



Shortstar 3.5L


Northstar 4.0L V-8 L47


Northstar 4.6L V-8 LD8
« Last Edit: December 31, 1969, 06:00:00 PM by discretesignals »

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losmaster

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Re: Olds Intrigue Misfire
« Reply #2 on: December 07, 2007, 08:07:46 PM »
Discrete, you know entirely too much about caddy's, now stop it, before you forget how to work on "real" cars, like Chevys and Fords.  Laughing

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discretesignals

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Re: Olds Intrigue Misfire
« Reply #3 on: December 07, 2007, 08:21:27 PM »
Caddy?  You think I want to commit suicide?    Laughing

Every time we get a Caddy in the shop for an oil leak we end up sending it to the dealer.  I sure don't want to be pulling engines and playing around with the half blocks.  I'd rather pick up that hot burning cauldron with my forearms like David Carradine did in the television show Kung Fu.
« Last Edit: December 31, 1969, 06:00:00 PM by discretesignals »

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losmaster

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Re: Olds Intrigue Misfire
« Reply #4 on: December 07, 2007, 08:30:19 PM »
Shocked   Sorry caddy lovers had to throw that in here!   Laughing

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discretesignals

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Re: Olds Intrigue Misfire
« Reply #5 on: December 07, 2007, 08:31:49 PM »
Caddy took over where Corvair left off. Cool

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losmaster

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Re: Olds Intrigue Misfire
« Reply #6 on: December 07, 2007, 08:36:28 PM »
Yep, thing is...  the older ones with the 472 cu " engine and the thm 400 trans were tough, when they came out with the 4100... I disowned them   Laughing

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discretesignals

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Re: Olds Intrigue Misfire
« Reply #7 on: December 07, 2007, 08:45:37 PM »
How about the 307 in the Caddy in the late eighties and early nineties?  Did you like doing valve covers underneath vacuum hose city.  When you opened the hood it look like a plate of spaghetti sitting on top of the engine.  Do you remember some of the Caddy's coming with a belt driven vacuum pump because there was so much vacuum controlled equipment that the brake booster wouldn't work with out it?

Floor dry?  How about a box of Depends?
« Last Edit: December 31, 1969, 06:00:00 PM by discretesignals »

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Re: Olds Intrigue Misfire
« Reply #8 on: December 09, 2007, 06:48:52 PM »
Thanks for the information on cylinder number.  I was hoping it would be one of the front 3, but I guess I'm not that lucky.  My next step will be to make sure the boot and plug are okay.  If anyone has any other advice on what might be causing my misfire, let me know.  This car was great for the first 120K of it's life, now it is being an absolute pain.  Today I swapped out the thermostat.  The seal around the thermostat tore.  The thermostat is $38 for a "shortstar".  Crazy.

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