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Misfire at highway speed, no service engine light. No code.

Customer Question
Misfire at highway speed...

Misfire at highway speed, no service engine light

Mechanic's Assistant: Do you have the trouble code? Do you have a code reader or scan tool?

No code

Mechanic's Assistant: I'll pass this info along to the Saturn Mechanic so that he can get you a quick fix. What is the model/year of your Saturn?

2000 SW2

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

In have changed the plugs , and ignition coils

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

And new fuel filter

Submitted: 8 months ago.Category: Saturn
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Answered in 3 hours by:
10/17/2017
Saturn Mechanic: david craig, Saturn Mechanic replied 8 months ago
david craig
david craig, Saturn Mechanic
Category: Saturn
Satisfied Customers: 5,601
Experience: owner/mechanic at 3D Automotive
Verified

Hi Im David, thanks for visiting the site. if you have a misfire at highway speed then you will having a check engine light on or flashing.

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Customer reply replied 8 months ago
Please see above, the service engine light is NOT on!
Saturn Mechanic: david craig, Saturn Mechanic replied 8 months ago

I can read. then you dont have a misfire

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Saturn Mechanic: david craig, Saturn Mechanic replied 8 months ago

if you are driving and experience a misfire. the check engine light will start flashing. period

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Saturn Mechanic: david craig, Saturn Mechanic replied 8 months ago

just because it start jerking or hesitating doesn't mean its an engine issue.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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