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Author Topic: engine starts runs  then idles rough and dies  (Read 974 times)

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buggkilla

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engine starts runs  then idles rough and dies
« on: 22 November 2007, 05:44:59 »
2000 cadilac catera engine will start every time idles up to 2000 then falls to below 500 and dies need posible causes
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JamesV6CDX

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Re: engine starts runs  then idles rough and dies
« Reply #1 on: 22 November 2007, 07:36:48 »
The first thing to do is read your fault codes.
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ians

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Re: engine starts runs  then idles rough and dies
« Reply #2 on: 22 November 2007, 11:04:34 »
The 2.0 breather/throttle body/ICV clean up would be my first port of call.
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Marks DTM Calib

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Re: engine starts runs  then idles rough and dies
« Reply #3 on: 22 November 2007, 11:14:06 »
3.0V6 engine only in the caterra...

I would give the idle valve a dam good clean out as a starter for ten.

Does it run ok with a little light throttle?

Other possibles are an air leak.
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ians

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Re: engine starts runs  then idles rough and dies
« Reply #4 on: 22 November 2007, 11:17:25 »
b@llocks - I misunderstood the 2000  :-[
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Martin_1962

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Re: engine starts runs  then idles rough and dies
« Reply #5 on: 22 November 2007, 13:19:59 »
Quote
3.0V6 engine only in the caterra...

I would give the idle valve a dam good clean out as a starter for ten.

Does it run ok with a little light throttle?

Other possibles are an air leak.


It's a DBW Mark
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Marks DTM Calib

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Re: engine starts runs  then idles rough and dies
« Reply #6 on: 22 November 2007, 13:27:33 »
The little throttle trick still works on DBW units.....
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lawbet7eb

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Re: engine starts runs  then idles rough and dies
« Reply #7 on: 22 November 2007, 17:25:58 »
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2000 cadilac catera engine will start every time idles up to 2000 then falls to below 500 and dies need posible causes

disconnect air flow meter then try to start it,,,
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buggkilla

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Re: engine starts runs  then idles rough and dies
« Reply #8 on: 22 November 2007, 23:13:24 »
you R my hero, lawbet - mass air flow was the problem!! thanks SOOOO MUCH
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ffcgary1

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Re: engine starts runs  then idles rough and dies
« Reply #9 on: 22 November 2007, 23:19:50 »
Thats rare for a MAF to fail. :o
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Marks DTM Calib

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Re: engine starts runs  then idles rough and dies
« Reply #10 on: 23 November 2007, 08:37:29 »
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Thats rare for a MAF to fail. :o

VERY rare....not running an oiled cone filter by any chance?
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