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Old 05-28-2013, 07:44 AM   #1
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Sputtering??

What should I do when my car is sputtering?? Spark plugs, wires, coil pack? What's going on with it? Yesterday it didn't want to start right up but it did after about 3 cranks. I'm so tired of my car not running right. Can someone help me!?
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Old 05-28-2013, 07:53 AM   #2
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I've also been having issues when I have low fuel. My check engine light is on for the evap sensor and fuel tank pressure sensor. I'm getting so fed up with it. It's always something
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Old 05-28-2013, 11:21 AM   #3
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The first thing you need to do is fix the EVAP and fuel tank issues--what were the codes?
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Old 05-28-2013, 11:50 AM   #4
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Quote:
Originally Posted by cliffyk View Post
The first thing you need to do is fix the EVAP and fuel tank issues--what were the codes?
I think it was a p0453 code or something
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Old 05-28-2013, 01:16 PM   #5
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How can I fix those?
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Old 05-28-2013, 04:34 PM   #6
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I had an evap code for a while and it turned out the gas cap wouldn't seal up. I just bought a locking one and all is well. Maybe you could just buy the rubber o ring that goes on the cap.
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Old 05-28-2013, 04:57 PM   #7
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Quote:
Originally Posted by Mfore33 View Post
I had an evap code for a while and it turned out the gas cap wouldn't seal up. I just bought a locking one and all is well. Maybe you could just buy the rubber o ring that goes on the cap.
What were your symptoms from it?
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Old 05-28-2013, 06:31 PM   #8
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Here are the possible causes for P0453, from the shop manual.

Though not listed there is a slim possibility that the gas cap leaking or just not tight might cause the code. However the problems caused by that would likely not be as pronounced as you describe--nonetheless it needs to be corrected before the sputtering can be properly diagnosed.

You also need to check the usual suspects; spark plugs, COP boots (check them for hardening, cracks and/or a "burnt" smell), etc. How many miles on the engine, when were the plugs last changed?
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Old 05-28-2013, 06:58 PM   #9
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Quote:
Originally Posted by cliffyk View Post
Here are the possible causes for P0453, from the shop manual.

Though not listed there is a slim possibility that the gas cap leaking or just not tight might cause the code. However the problems caused by that would likely not be as pronounced as you describe--nonetheless it needs to be corrected before the sputtering can be properly diagnosed.

You also need to check the usual suspects; spark plugs, COP boots (check them for hardening, cracks and/or a "burnt" smell), etc. How many miles on the engine, when were the plugs last changed?
I'm not sure. It has 70k miles and I've never changed them. What's a cop boot?
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Old 05-28-2013, 07:10 PM   #10
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The COPs are the ignition coils (Coil On Plug = COP). The boots insulate the conductor that connects the COP output to the plug. They look like this removed and disassembled:



The boots harden and become somewhat conductive with heat and age, and often will allow the coil's output to "bleed off" into the plug well before the plug gap is fully ionised. You can buy new boots and conductors for $3 each from here.

Ford says replace the plugs at 100k miles, however I believe that at 10 years old and 70k miles it's time to replace them...
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Old 05-28-2013, 07:13 PM   #11
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Quote:
Originally Posted by cliffyk View Post
The COPs are the ignition coils (Coil On Plug = COP). The boots insulate the conductor that connects the COP output to the plug. They look like this removed and disassembled:

The boots harden and become somewhat conductive with heat and age, and often will allow the coil's output to "bleed off" into the plug well before the plug gap is fully ionised. You can buy new boots and conductors for $3 each from here.

Ford says replace the plugs at 100k miles, however I believe that at 10 years old and 70k miles it's time to replace them...
Okay I'll do that too! And what do I do about the evap and fuel tank pressure sensor?
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Old 05-28-2013, 07:33 PM   #12
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Quote:
Originally Posted by DSG2003 View Post
Okay I'll do that too! And what do I do about the evap and fuel tank pressure sensor?
Work the list of possible causes from the top down...
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Old 05-28-2013, 08:34 PM   #13
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Quote:
Originally Posted by cliffyk View Post

Work the list of possible causes from the top down...
Well what would cause that? It's random
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Old 05-28-2013, 08:41 PM   #14
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Originally Posted by DSG2003 View Post
Well what would cause that? It's random
I don't know what else to tell you other than to work the list of possible causes from the top down...
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Old 05-28-2013, 09:15 PM   #15
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Nobody knows, that the problem with EFI too much guessing. lol
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