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Old 09-28-2011, 06:56 PM   #1
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my car wont accelerate it starts to shake

02 GT every time I accelerate wont pick up it starts to shake I already change the spark plugs and coils I'm thinking its the fuel filter or gas regulator
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Old 09-28-2011, 07:08 PM   #2
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Quote:
Originally Posted by 02gtmustang
02 GT every time I accelerate wont pick up it starts to shake I already change the spark plugs and coils I'm thinking its the fuel filter or gas regulator
Wires?
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Old 09-28-2011, 07:42 PM   #3
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Quote:
Originally Posted by nickysixx

Wires?
+1, sounds like they are grounding out.
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Old 09-28-2011, 08:13 PM   #4
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Had the same problem with my car, wouldn't accelerate passed 40. Turned out a couple wires shorted out. Changed them out and the car ran great.
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Old 09-28-2011, 08:27 PM   #5
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Mine keeps accelerating but it shakes..when ever I its on park if u go to the mufflers it sounds like its misfirein
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Old 09-28-2011, 09:43 PM   #6
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Sounds like the wires may be grounding out if it's missing, or you don't have a good connection.
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Old 09-28-2011, 11:20 PM   #7
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Quote:
Originally Posted by 93slowstang
Sounds like the wires may be grounding out if it's missing, or you don't have a good connection.
Yep. Went through a whole tune up with my mustangs. Wires are a major problem once they short.
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Old 09-28-2011, 11:37 PM   #8
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Oh real easy way to check for grounding wires is to go to a dark spot at night and crank the car. Look under the hood and if it looks like "Christmas lights" then your wires are bad. You may have to rev the motor to be able to see them arching out if they are bad.
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Old 09-29-2011, 12:04 AM   #9
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Quote:
Originally Posted by 93slowstang
Oh real easy way to check for grounding wires is to go to a dark spot at night and crank the car. Look under the hood and if it looks like "Christmas lights" then your wires are bad. You may have to rev the motor to be able to see them arching out if they are bad.
+1
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Old 09-29-2011, 08:41 AM   #10
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If the car is an 02 gt then there are no wires. They are coil on plug

---------- Post added at 01:41 PM ---------- Previous post was at 01:37 PM ----------

Check the fuel pressure. Ive seen many times a fuel pump do this. Make sure you are getting correct voltage to the pump as well. Ive seen where the relay goes in and out and wont create efficient fuel pressure. Our cars have the relay in the ccrm which is a common failure as well as the fuel pump driver module which isnt as common to fail. You always want to chamge the fuel filter every so often. If not it can cause premature pump failure
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Old 09-29-2011, 08:43 AM   #11
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Check your o2 sensors. Mine was doing similar stuff and I had a bad o2 sensor
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Old 09-29-2011, 02:23 PM   #12
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Thanks for the answers!! And another thing it just started liking antifreeze but don't know were is coming from from the back of the engine were the engine and transmission connect I'm think its one of the seals ya think its ganna be expensive or I can just put an radiator sealant
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Old 09-29-2011, 02:26 PM   #13
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If it's coming from the firewall it's your heater core.
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Old 09-29-2011, 02:33 PM   #14
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Oh ok thanks ima check on that
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Old 09-29-2011, 03:40 PM   #15
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If its leaking coolant thrn its probably dripping down into the coils and makin it misfire.
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Old 09-29-2011, 03:52 PM   #16
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But its leaking thru the bottom right in the middle of the car were the engine and trans connect none of the lines are leaki
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Old 09-29-2011, 08:09 PM   #17
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That usually happens when it drips down under the intake and sits in the valley. You need to find where the leak is. White crusty residue will point it out. Pull the coils out and see if there is coolant or the crusty stuff.
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Old 09-29-2011, 10:11 PM   #18
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Oh ok appreciate that ima look into that
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