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Mach 1 Section This section is for discussions relating to the reincarnation of the Mach 1 trimline.

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mach 1 issues

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Old 04-20-2011, 10:01 PM   #1
03_mach_won
 
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Default mach 1 issues

Hello I just purchased a used 2003 mach 1 with 70k miles and the car at first felt like a 4 cylinder honda.. no kidding. The car kept bogging out when i would press the gas pedal more then half way and I could feel the motor vibrating and the shaker was just going crazy moving left to right. So i figured it was misfiring/detonation. I replaced all 8 spark plugs (pretty easy to install) with OEM FORD plugs and that helped my issue about 80%.. the car feels much more powerful, but its still bogging out.. especially when im cruising in the freeway I cant really put my foot on the pedal in 5th gear.. i usually have to downshift to 4th gear so the car doesn't bog out. Any other suggestions? I bought the car off a dumba$$ lady that did nothing but oil changes. The TOB is also making some nasty crunchy sound, but as soon as i put my foot on the clutch the sound goes away.. any suggestions on a daily driver clutch thats a bit beefier then oem? as far as the bogging should i replace the fuel filter and coil packs along with a new air filter? The car isn't throwing any codes at the moment..phew.

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Old 04-20-2011, 10:13 PM   #2
Blackened04
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What do you mean by bogging down? I try to keep my RPM's at least at 1500 if I'm cruising in 5th gear, and that isnt hard to do with 4.10's. Take it into a trustworthy mechanic if you think there is a problem. I would probably do all the normal stuff if I know the car has been neglected like change all your fluids, filters, etc. Is the car modded in any way? If so, maybe you need a tune. And remember premium fuel only!
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Old 04-20-2011, 10:22 PM   #3
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Originally Posted by Blackened04 View Post
What do you mean by bogging down? I try to keep my RPM's at least at 1500 if I'm cruising in 5th gear, and that isnt hard to do with 4.10's. Take it into a trustworthy mechanic if you think there is a problem. I would probably do all the normal stuff if I know the car has been neglected like change all your fluids, filters, etc. Is the car modded in any way? If so, maybe you need a tune. And remember premium fuel only!
As in when i press the gas the car wants to die! it doesn't move! imagine going 10mph in 5th gear W0T.. thats how the feeling is.
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Old 04-20-2011, 10:23 PM   #4
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Previous owner used 89 gas and im currently using 91, but i doubt she took the car past 4000 rpm literally the motor sounds very healthy minus her ruining the clutch/TOB.
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Old 04-21-2011, 01:06 AM   #5
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Did it act that way during the test drive? I would take it to your mech and have them diagnose it. Could be a number of things.
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Old 04-21-2011, 02:54 AM   #6
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Did it act that way during the test drive? I would take it to your mech and have them diagnose it. Could be a number of things.
nope not until recently. I'm going to try out new coil packs and air filter
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Old 04-21-2011, 07:29 PM   #7
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Quote:
Originally Posted by 03_mach_won View Post
Previous owner used 89 gas and im currently using 91, but i doubt she took the car past 4000 rpm literally the motor sounds very healthy minus her ruining the clutch/TOB.
She used 89 the whole 70k miles??? If so, that's definitly what's caused the issue. Before you start spending $ on the process of elimination parts, take the car to a Ford dealership and have a Ford mechanic check out the entire car from top to bottom. You'll thank yourself for it.

EDIT: holy crap gas is expensive where you live, and welcome to the Mach family.
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Old 04-23-2011, 06:51 AM   #8
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She used 89 the whole 70k miles??? If so, that's definitly what's caused the issue. Before you start spending $ on the process of elimination parts, take the car to a Ford dealership and have a Ford mechanic check out the entire car from top to bottom. You'll thank yourself for it.

EDIT: holy crap gas is expensive where you live, and welcome to the Mach family.
The air filer was dirty as ****.. i replaced it, and the fuel filter was dripping out mud.. oem fuel filter thats never been replaced lol.. and lucas fuel injector cleaner with 91 octane... its helped the car so much! i feel more power and the bogging has settled down and it only happens once in a while. I'm thinking about doing round 2 with lucas injector cleaner.
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Old 04-23-2011, 06:54 AM   #9
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I also bought royal purple gear oil 75w90 and transmission fluid.. any suggestions on that before i put the car on jack stands next week?
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Old 04-23-2011, 11:15 AM   #10
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I believe it's supposed to take 75w 140.
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Old 04-23-2011, 05:53 PM   #11
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I believe it's supposed to take 75w 140.
you sir are correct. It even has a tag on the cover that says 75w140 so i returned the 75w90 back... shes running amazing now.. the previous owner just didn't care about changing anything on it.. and dang shes so fast coming from having a honda with only 191whp lol
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Old 04-24-2011, 10:49 PM   #12
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congrats, its always best to start small and work your way up when things arent running right.
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Old 04-25-2011, 08:51 PM   #13
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Quote:
Originally Posted by 03_mach_won View Post
The air filer was dirty as ****.. i replaced it, and the fuel filter was dripping out mud.. oem fuel filter thats never been replaced lol.. and lucas fuel injector cleaner with 91 octane... its helped the car so much! i feel more power and the bogging has settled down and it only happens once in a while. I'm thinking about doing round 2 with lucas injector cleaner.
that's good news, easy fixing and saving you money. The synthetic gear oil is 75w 140, and when you return the incorrect weight just go with Amsoil instead. Seeing that a fuel filter is cheap, I'd install another new one in a week or so so that any leftover crude is gone. Happy to hear the good news.
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Old 04-25-2011, 11:42 PM   #14
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since Califorina has cheap gas, would octane booster help a mach 1 or is it just a waste of money?
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Old 04-26-2011, 07:38 PM   #15
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since Califorina has cheap gas, would octane booster help a mach 1 or is it just a waste of money?
don't waste your money. Only run what she's tuned to run on. Excessive octane can actually hurt performance. Though, the booster increased octane by no more than 3 tenths of one octane.
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Old 06-02-2011, 12:51 PM   #16
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WOOOFFFFFF! i live in jersey, and it's a law we can't pump our own gas. one time the guy pumping my gas wasn't in the right state of mind, and gave me plus, and only pumped it for 10 seconds he may have put one gallon in it. he was pretty cool about it, and corrected himself, and told me. he could have never told me, and waited until after i got on the road and came back pissed at him. he actually had the nerve to admit he made a mistake which i appreciated. he also didn't charge me for the gallon of plus he put in. he had pumped my gas for a while, and still continued to after so i trusted him. i still gave him tips sometimes too since he was cool, and he's still pumping at that station, but i don't live up in that area anymore, but when i'm up there i get my gas there. i been getting gas there since high school in the late 80s long before he was working there. probably when he was in diapers. ever since though i make sure they hit premium, and filling it with the premium pump. it started bogging with just a gallon of the middle grade! the dude who pumped it has always been cool so i never held it against him.

i can't imagine one of these being ran for 70k miles on regular!
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Old 06-08-2011, 11:08 AM   #17
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check fuel filter and pressure.
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Old 06-09-2011, 10:57 AM   #18
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I checked the fuel pressure it was around 29-35 regardless I replaced my fuel pressure regulator. I'm going to try out the mass air flow sensor and check the cats to make sure they're not clogged. Other then that I replaced the clutch with the 11" cobra and she's running amazing.. The bogging happens once in a while now when the car has been running for a while.. That's why I'm checking the cats some time this week.
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Old 06-16-2011, 10:33 PM   #19
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i dont know if u have fixed the problem but i had a similar problem with my stang. 1st time it would bog at high rpm that was a bad coil doesnt really sound like your issue. however 2nd time in at about 3,000 rpm in 4th the car would not die but there was no throttle response same all of 5th turned out to be a bad MAF sensor. hope this helps before u go blowing a ton of money trying to figure it out.
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Old 06-16-2011, 10:34 PM   #20
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and retune.
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Old 06-16-2011, 10:34 PM
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