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#2558850 - 07/13/12 05:37 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
Hill185 Offline

Over the Hill

Registered: 11/09/02
Posts: 1578
Loc: Boston, Mass.
Sure sounds like a bad coil, smelly exhaust and uneven idle. But, almost everytime my check engine light comes on. I'm still going with bad COP plug though...

Ah good way of testing that is unplugging each coil while the car is running. If the COP is good the idle will become even more rough while unplugged, if you unplug the bad COP the engine will remain with the same rough idle.
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#2559023 - 07/14/12 12:54 AM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
a_d_a_m Offline

3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 27441
Loc: Cleveland, OH
Well, with the coil covers unbolted and removed, the coils won't stay on the plugs very well. I'll try to do it though. It'll hafta wait until Wednesday when I am free to wrench on the car. frown
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#2559143 - 07/14/12 09:32 AM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
Jeff_from_jeffco Offline
Climber

Registered: 08/11/11
Posts: 538
Loc: Mo, jefferson country
everyone can call me crazy but i can assure you if it happened right after i filled up i would still take the fuel pump out and atleast drain the tank and try getting gas at another station. may seem weird to everyone but if it happened right after fill up it is the fuel system (or atleast would be the system i check first). im leaning towards a couple things:

Fuel pump, fuel filter, bad fuel regulator allowing gas to seep in (diaphram has failed and is allowing 100% fuel instead of cutting off adding and so on) running rich, or the fact of bad gas. just the things i would check...
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#2559210 - 07/14/12 12:40 PM Re: '03 Marauder engine shudder... [Re: Jeff_from_jeffco]
2004_p71 Offline

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15678
Loc: Quebec Canada
Originally Posted By: Jeff_from_jeffco
everyone can call me crazy but i can assure you if it happened right after i filled up i would still take the fuel pump out and atleast drain the tank and try getting gas at another station. may seem weird to everyone but if it happened right after fill up it is the fuel system (or atleast would be the system i check first). im leaning towards a couple things:

Fuel pump, fuel filter, bad fuel regulator allowing gas to seep in (diaphram has failed and is allowing 100% fuel instead of cutting off adding and so on) running rich, or the fact of bad gas. just the things i would check...

x2
it is very unlikely to see a perfectly running car go bad in few min unless you had an accident .
my best bet is water in fuel
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#2559274 - 07/14/12 03:30 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
Jeff_from_jeffco Offline
Climber

Registered: 08/11/11
Posts: 538
Loc: Mo, jefferson country
i just find it funny how without any diagnostics nor any misfire codes spoken in this thread everyone jumps right to its a cop thats bad lol if its running that rough he had to have it towed all of your suggestions would have thrown a cel except the ones dealing with fuel haveing water in it. just my .02 smile

before you throw wasted money into your car that may or may not need those parts... please take a fuel sample and let it sit for 2-3 hours and see if it seperates so we know if you got gas or water/gas. im still thinking its water in the tank.
_________________________
2000 p71 police interceptor from Town n County
Aftermarket stereo with 4 12 inch audiopipe subwoofers and 2 1500w rms amps 1 ohm stable smile
top speed run so far of 135
159,xxx Still running like a champ
jmod- with no springs
99 PCM/MAF, bumper tucked, 200 amp alternator upgrade, headlamp relay mod, wig wags, 102 inch whip with cb. - all done with ctrichsler's help

Other vehicles:
2004 cummins turbo diesel - 111k
2005 dodge SRT-10 pickup 37k miles
1995 dodge 1500 206k miles

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#2559714 - 07/15/12 03:06 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
a_d_a_m Offline

3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 27441
Loc: Cleveland, OH
After talking to Pier last evening about this on the phone, I am inclined to start with the cheap fixes first and pull the fuel filter (needs a replacement probably anyway) and let the fuel sit for a little to see if it separates.

I agree that it's suspicious that the problem started immediately after fueling up. The reason I am mostly worried is because of the ticking I heard a few days earlier, and because of the odor from the tailpipe.

When I moved the car into the garage yesterday, I noticed that it didn't smell like burnt oil, but like SUPER RICH gas smell.



I'm in Ontario right now; when I get home I will drop the fuel filter and keep everyone posted.


And lest I forget, thank you everyone for their suggestions, input, whatever. I am only a semi-okay wrench and haven't had many problems with this car. Needless to say, stuff like this scares me. frown
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#2559829 - 07/15/12 08:34 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
prodigalson Offline
Banned
Over the Hill

Registered: 05/25/09
Posts: 3167
Loc: Cleveland, OH USA
Could you tell which side the ticking was coming from? Which side the exhaust is missing?

Rule the blown plug out for sure. It'd be a racket unmistakeable and your COP cover would likely be cracked or dented.

03 4v are notorious for overheating on the #7-8 holes due to lack of coolant circulation. Ticking is the main symptom of this. If you haven't done a cooling mod or had the revised head installed with the blue stripe on it I'd put even money on this being your problem with 108k on the clock. Surprised only one person has hinted at it yet. It's a possibility one of the exhaust seats came loose from uneven cooling and that caused the tick and now you have an exhaust leak at the chamber. This is worst case scenario, but very common.

Call the gas station back and see if any new complaints have come forward. They will probably say no regardless. Even if it is bad gas, knowing what I know I'd be pretty concerned about that tick if it isn't already the problem.

EDIT: Also, a hanging exhaust valve from a bad seat would scavenge raw fuel from the intake stroke. Less fuel in the chamber means lean condition. Lean condition means miss. It also means smelly exhaust. Just keep that in the back of your mind. If you want maybe I can swing up later this week and have a listen?

Keep doing what you're doing with the fuel until you rule everything else out.


Edited by prodigalson (07/15/12 08:38 PM)
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#2559873 - 07/15/12 10:03 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
martz0r Offline
Over the Hill

Registered: 04/29/08
Posts: 4295
Loc: Punta Gorda, FL
bs tech


Edited by BigNSlow (07/15/12 11:03 PM)
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#2559881 - 07/15/12 10:19 PM Re: '03 Marauder engine shudder... [Re: martz0r]
2004_p71 Offline

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15678
Loc: Quebec Canada
bs tech


Edited by BigNSlow (07/15/12 11:03 PM)
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#2559886 - 07/15/12 10:37 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
martz0r Offline
Over the Hill

Registered: 04/29/08
Posts: 4295
Loc: Punta Gorda, FL
bs tech


Edited by BigNSlow (07/15/12 11:03 PM)
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#2560988 - 07/17/12 09:37 PM Re: '03 Marauder engine shudder... [Re: prodigalson]
Hill185 Offline

Over the Hill

Registered: 11/09/02
Posts: 1578
Loc: Boston, Mass.
Originally Posted By: prodigalson
Could you tell which side the ticking was coming from? Which side the exhaust is missing?

Rule the blown plug out for sure. It'd be a racket unmistakeable and your COP cover would likely be cracked or dented.

03 4v are notorious for overheating on the #7-8 holes due to lack of coolant circulation. Ticking is the main symptom of this. If you haven't done a cooling mod or had the revised head installed with the blue stripe on it I'd put even money on this being your problem with 108k on the clock. Surprised only one person has hinted at it yet. It's a possibility one of the exhaust seats came loose from uneven cooling and that caused the tick and now you have an exhaust leak at the chamber. This is worst case scenario, but very common.

Call the gas station back and see if any new complaints have come forward. They will probably say no regardless. Even if it is bad gas, knowing what I know I'd be pretty concerned about that tick if it isn't already the problem.

EDIT: Also, a hanging exhaust valve from a bad seat would scavenge raw fuel from the intake stroke. Less fuel in the chamber means lean condition. Lean condition means miss. It also means smelly exhaust. Just keep that in the back of your mind. If you want maybe I can swing up later this week and have a listen?

Keep doing what you're doing with the fuel until you rule everything else out.


That's a good suggestion/theory. My 1st '03 Marauder, which I purchaced almost new back in '04 had a horrendous tick and overheated constantly, at 5k miles no less. I ended up unloaded the car with 20k because of the constant issues. Hopefully this is not the case with Adams vehicle ...


Edited by Interceptor4LYF (07/17/12 09:40 PM)
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#2560994 - 07/17/12 09:52 PM Re: '03 Marauder engine shudder... [Re: prodigalson]
GrandMarq9807 Offline
Over the Hill

Registered: 05/10/10
Posts: 4420
Loc: Virginia
Originally Posted By: prodigalson


03 4v are notorious for overheating on the #7-8 holes due to lack of coolant circulation. Ticking is the main symptom of this. If you haven't done a cooling mod or had the revised head installed with the blue stripe on it I'd put even money on this being your problem with 108k on the clock. Surprised only one person has hinted at it yet. It's a possibility one of the exhaust seats came loose from uneven cooling and that caused the tick and now you have an exhaust leak at the chamber. This is worst case scenario, but very common.

Which is exactly why I suggested listening to the rhythm of the engine as it spins over, this test takes all of 10 seconds... If it's uneven then the compression should be verified and forget about all the other suggestions until a reading is taken...
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#2561178 - 07/18/12 05:50 AM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
optik Offline
never say never
Poobah

Registered: 09/21/10
Posts: 8873
Loc: Minneapolis, MN
I know you won't be able to tear into it for a while, and it could be bad, but try not to worry about it too much, it could be COPs. My old vic had a bad one, threw a CEL and drove like crap. Had to struggle to get to 50mph. My truck on the other hand, it only sometimes threw a CEL for COP issues (of which it's had plenty) in spite of running like it was about to explode.
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#2561294 - 07/18/12 11:58 AM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
D-Fenz Offline

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Registered: 10/23/03
Posts: 6686
Loc: Free America (WV)
Sure sounds like a bad COP or bad plugs.
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#2561375 - 07/18/12 02:49 PM Re: '03 Marauder engine shudder... [Re: a_d_a_m]
MyP71Vic Offline
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Registered: 09/27/10
Posts: 2299
Loc: Brookfield, WI
My 04 never threw a CEL but 3 COP's crapped out at once. Hopefully it will be ok it is bad enough the other one just got taken out.
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