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Can loose gas cap cause engine problem?

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Old

Aug 27, 2014 | 10:14 AM

#1

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Joined: Jul 1999

Posts: 180

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Can loose gas cap cause engine problem?

88 Iroc-Z with 383, tpi.
Runs rough at low idle. Often kills.
But then runs fine for days
Someone suggested gas cap may be loose or defective.
???

Old

Aug 27, 2014 | 10:18 AM

#2

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Joined: Sep 1999

Posts: 7,072

Likes: 13

From: Philly, PA

Re: Can loose gas cap cause engine problem?

No. Later cars will throw a check engine light if the cap is loose, but 3rd gens have no such monitoring system.

Old

Oct 22, 2014 | 04:50 PM

#3

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Joined: Jul 1999

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Re: Can loose gas cap cause engine problem?

Quote:

Originally Posted by Damon

No. Later cars will throw a check engine light if the cap is loose, but 3rd gens have no such monitoring system.

Thank you,Damon.
Chuck

Old

Oct 22, 2014 | 05:06 PM

#4

Member

Joined: Jun 2014

Posts: 360

Likes: 3

From: South Jersey

Car: 88 GTA Notch/01'WS-6 VERT

Engine: 5.0 LB-9/5.7 LS-1

Transmission: 700R-4/4L60

Axle/Gears: borg warner 3.27's

Re: Can loose gas cap cause engine problem?

Quote:

Originally Posted by Damon

No. Later cars will throw a check engine light if the cap is loose, but 3rd gens have no such monitoring system.

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