Question about Cadillac STS

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Engine light flashing, wont go over 30mph because it will start flashing... It also shakes while stopped or parked..

Already put in new spark plug, got the oil changed, new air filter.

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  • princesaanna Mar 07, 2012

    It shakes only when it's still.. When I touch the accelerator slowly it stops

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

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Good luck!

Posted on Jan 02, 2017

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autodr

autodr

  • 260 Answers

SOURCE: Check Engine Light

scan the computer again for codes. driving the car with flashing ck engine lite is damaging the valves and the cat converters. any po300,1,2,3,4,5,6,7,8 codes indicate that cyl. #misfire. most likely plugs and/or coils. if the po174 is back i would take a look at a possible vacuum leak in engine somewhere. the o2 sensor could have fixed the 153/4 but still could be more

Posted on Dec 06, 2008

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Sam Challis

  • 177 Answers

SOURCE: 1999 nissan frontier is idling rough the truck

This can be your Idle control valve, when you turn the air on it puts the engine under load and your computer will increase the idle automatically to prevent the engine from cutting out.
When you are standing still and the car is shaking, by touching the accelerator very softly does the shaking stop? If so check the idle control valve.
I hope this will help.
Regards
Sam

Posted on May 13, 2009

jac555

  • 4 Answers

SOURCE: eng. shakes spits/sputters oil in spark plugs

I just had this fixed on my suby today. The cause is that the spark plugs, go through the valve covers on the 2.5 l .When the o rings in the cover go, the result is oil in the spark plugs. The cost of the repair in Canada was about $500 including diagnostics as well as new plugs and wires About 1.5 hours labor and new seals and gaskets. It now runs like new. This is a common problem for this subaru engine as well as for the dodge neon.

Posted on May 23, 2009

Anonymous

  • 40 Answers

SOURCE: Check Engine Light on and flashing on Montana 2001

Most major Autoparts stores will get the Diagnostic codes from car computer and give you info on why light is on and what the problem is.

Posted on Jun 01, 2009

localwonder

Michael Masters

  • 6784 Answers

SOURCE: I have a 2001 Mercury Sable the check engine light

Hi, this is an issue that concerns the coil pack on your engine. It is malfunctioning. and, i recommend testing to make sure of thsi issue.

Check for dirt, corrosion or damage on the terminals and repair as necessary.

Measure coil primary resistance between ignition coil pin 4 (B+) and pins 1 (coil 2), 2 (coil 3) and 3 (coil 1) .


Resistance should be 0.3-1.0 ohms. If resistance is out of specifications, replace the coil pack. If resistance is within specifications, proceed to secondary windings testing.



Coil 1-cylinders 1 and 5 Coil 3-cylinders 2 and 6 Coil 2-cylinders 3 and 4


Resistance should be 12.8-13.1 kilohms. If secondary resistance is not within specification, replace the coil pack.

You can jump this link below for a good look at a diagram of the coil pack.

Click Here


Posted on Jul 11, 2009

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