v6 horrible mpg and preformance - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 02-21-2013, 06:02 PM   #1
Registered Member
Regular
 
tommygrubb2001's Avatar
 
Join Date: Feb 2013
Location: Ashland
Region: Kentucky
Posts: 34
v6 horrible mpg and preformance

ok, i have owned my v6 mustang for about a year now. the car has alway had issues which i have tried to fix. When we first got it the power steering pump needed replaced, we did that and it still squeals like a mother. The car has no power, very slow acceleration. I replaced spark plugs, and wires. the rpms was jumping so i cleaned the idle air control valve and replaced the gasket. also when i turn on the ac the rpms jump bad. also i replaced the fuel filter, and air filter. the mpg sucks!!!! drinks a quarter in like 20 miles. someone lead me in a good direction
tommygrubb2001 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-21-2013, 06:06 PM   #2
Registered Member
Regular
 
v8pony's Avatar
 
Join Date: Aug 2012
Location: Monmouth County, New Jersey
Region: New Jersey
Posts: 2,201
Year mustang would help..mileage?
__________________
2002 5spd GT
Feb 2013 Mustang of the Month
v8pony is offline   Reply With Quote
Old 02-21-2013, 06:08 PM   #3
Registered Member
Regular
 
tommygrubb2001's Avatar
 
Join Date: Feb 2013
Location: Ashland
Region: Kentucky
Posts: 34
i dont know why i forgot that, it is a 2001 auto. 118,000 miles
tommygrubb2001 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-21-2013, 06:10 PM   #4
Registered Member
Regular
 
v8pony's Avatar
 
Join Date: Aug 2012
Location: Monmouth County, New Jersey
Region: New Jersey
Posts: 2,201
Quote:
Originally Posted by tommygrubb2001 View Post
i dont know why i forgot that, it is a 2001 auto. 118,000 miles
Has the car always felt underpowered to you, or just recently?
__________________
2002 5spd GT
Feb 2013 Mustang of the Month
v8pony is offline   Reply With Quote
Old 02-21-2013, 06:14 PM   #5
Registered Member
Regular
 
35th GT's Avatar
 
Join Date: Feb 2013
Location: Campti
Region: Louisiana
Posts: 57
Quote:
Originally Posted by tommygrubb2001 View Post
ok, i have owned my v6 mustang for about a year now. the car has alway had issues which i have tried to fix. When we first got it the power steering pump needed replaced, we did that and it still squeals like a mother. The car has no power, very slow acceleration. I replaced spark plugs, and wires. the rpms was jumping so i cleaned the idle air control valve and replaced the gasket. also when i turn on the ac the rpms jump bad. also i replaced the fuel filter, and air filter. the mpg sucks!!!! drinks a quarter in like 20 miles. someone lead me in a good direction
I'd say do a motor swap.. A 4.6 isn't bad on gas and you'll have power and no more of these problems.. You can possibly buy a used police crown Victoria for really cheap and swap motors
35th GT is offline   Reply With Quote
Old 02-21-2013, 06:16 PM   #6
Registered Member
Regular
 
tommygrubb2001's Avatar
 
Join Date: Feb 2013
Location: Ashland
Region: Kentucky
Posts: 34
i cant afford a motor swap at this time, and it was always felt under powered, hard time going up hills, and feels so sluggish.
tommygrubb2001 is offline   Reply With Quote
Old 02-21-2013, 06:45 PM   #7
Registered Member
Regular
 
PonyBoyV6's Avatar
 
Join Date: Aug 2011
Location: Chicago Area
Region: Illinois
Posts: 1,079
Not sure if the 01's had a coil pack, but my 00 v6 was sluggish going up hills and from a dead launch. I didn't see you mention you replaced the coil pack either, so that might help. And perhaps anew fuel filter if you haven't already. I did that with my car, and it awoke a whole new animal. Nevermind on the fuel filter, did see you replaced it. My bad. But definitely try the coilpack.
PonyBoyV6 is offline   Reply With Quote
Old 02-21-2013, 06:48 PM   #8
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
To be honest i think your cats are clogged... it explains all of your symptoms
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-21-2013, 06:51 PM   #9
Registered Member
Regular
 
sam62893's Avatar
 
Join Date: Jul 2012
Location: Colton
Region: California
Posts: 2,029
Quote:
Originally Posted by 35th GT View Post

I'd say do a motor swap.. A 4.6 isn't bad on gas and you'll have power and no more of these problems.. You can possibly buy a used police crown Victoria for really cheap and swap motors
That thing is huge I don't think it will fit in the engine bay

As for the power loss. Do a complete tune up. Then get the vehicle diagnosed. And start replacing old parts from least expensive to most expensive. My car is the only NE (new edge) I've driven but I feel like my engine is underpowered too, like if something is holding it back
sam62893 is offline   Reply With Quote
Old 02-21-2013, 06:54 PM   #10
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
That engine would fit lol..but in all seriousness im sticking with clogged cats. I bet if he temporarily cut the mains off its feel instantly better.
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-21-2013, 06:59 PM   #11
Registered Member
Regular
 
PonyBoyV6's Avatar
 
Join Date: Aug 2011
Location: Chicago Area
Region: Illinois
Posts: 1,079
Did not even think of clogged cats. Definitely a possibility. Would that not throw a code though?
PonyBoyV6 is offline   Reply With Quote
Old 02-21-2013, 07:02 PM   #12
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
Depends..his CEL bulb could be blown...the fuse to it could be blown...wiring could be bad...could already have something rigged on the o2 sensors to keep from.throwimg codes from previous owner
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-21-2013, 07:04 PM   #13
Registered Member
Regular
 
BlackSmoke02's Avatar
 
Join Date: Oct 2012
Region: California
Posts: 329
I have a few same symptoms. And I have a feeling it might be clogged catback. How do you unclog that?
BlackSmoke02 is offline   Reply With Quote
Old 02-21-2013, 07:07 PM   #14
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
You cant...so you either replace them or take them off and just put in tubing...if you dont have emissions that's always a fun choice. If you have emissions it can be easier to just buy some high flow cats and swap them out.
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-21-2013, 07:08 PM   #15
Registered Member
Regular
 
sam62893's Avatar
 
Join Date: Jul 2012
Location: Colton
Region: California
Posts: 2,029
Quote:
Originally Posted by 1slosix View Post
That engine would fit lol..but in all seriousness im sticking with clogged cats. I bet if he temporarily cut the mains off its feel instantly better.
Whoops, my bad. Those things look monstrous compared to the 3.8's i out cars. Maybe it just looks bigger.

Didn't you say that you can check if your cats are clogged by driving at night, and then checking under your car. If the cats are glowing they are clogged
sam62893 is offline   Reply With Quote
Old 02-21-2013, 07:11 PM   #16
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
Yeah that trick can help....but it sometimes doesnt work. However its a great idea to try
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-21-2013, 07:19 PM   #17
Registered Member
Regular
 
tommygrubb2001's Avatar
 
Join Date: Feb 2013
Location: Ashland
Region: Kentucky
Posts: 34
replaced the coil pack it went shot a couple months back, and the cel works cause when the coil pack pooped out i had the flashing cel stating it was misfiring. its annoying cause grandma cars just zoom past me like no tomorrow
tommygrubb2001 is offline   Reply With Quote
Old 02-21-2013, 07:38 PM   #18
slow281
Regular
Supporter
 
sixpac's Avatar
 
Join Date: Mar 2012
Location: Cedar Rapids
Region: Nebraska
Posts: 3,162
Quote:
Originally Posted by sam62893 View Post

Whoops, my bad. Those things look monstrous compared to the 3.8's i out cars. Maybe it just looks bigger.

Didn't you say that you can check if your cats are clogged by driving at night, and then checking under your car. If the cats are glowing they are clogged
The 4.6 is what the GTs have lol.
__________________
Need more Horsepower? Add a sticker. Contact me for vinyl stickers pre-made and custom!
Stick on Horsepower <- Click Here and like my Page!
2001 GT - True Blue
2003 V6 - Zinc Yellow
1990 LX 2.3 - project
sixpac is offline   Reply With Quote
Old 02-21-2013, 07:45 PM   #19
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
Quote:
Originally Posted by tommygrubb2001 View Post
replaced the coil pack it went shot a couple months back, and the cel works cause when the coil pack pooped out i had the flashing cel stating it was misfiring. its annoying cause grandma cars just zoom past me like no tomorrow
SLP High Flow Catalytic Converter Kit (96-10 Mustang) M31040 - Free Shipping!

just saying....with your mileage this is the most likely problem and this is a great fix if you have emissions...it's my plan when i redo my exhaust come spring
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-21-2013, 07:49 PM   #20
Registered Member
Regular
 
sam62893's Avatar
 
Join Date: Jul 2012
Location: Colton
Region: California
Posts: 2,029
Ahhh, I was at the junkyard today and I was taking a look at some crown Vic taxis/police cruisers and they look wider. It was just took on the eyes I see
sam62893 is offline   Reply With Quote
Old 02-21-2013, 08:14 PM   #21
Staff
Blogger
Staff
 
99ford's Avatar
 
Join Date: Jan 2009
Region: Georgia
Posts: 6,120
Send a message via Skype™ to 99ford
Out of curiosity have you checked to make sure that the brakes aren't dragging?
__________________
Check out the Official ME gear page for site t-shirts, decals, and bottle openers: http://www.mustangevolution.com/foru...2/#post1670281
99ford is offline   Reply With Quote
Old 02-21-2013, 08:24 PM   #22
Registered Member
Regular
 
tommygrubb2001's Avatar
 
Join Date: Feb 2013
Location: Ashland
Region: Kentucky
Posts: 34
i replaced both front brake calapiers pistons where sticking, so unless back ones was dragging no, which you would think i would hear grinding noise and such if the emergency breaks were dragging
tommygrubb2001 is offline   Reply With Quote
Old 02-21-2013, 08:28 PM   #23
Registered Member
Regular
 
Boomdizzle's Avatar
 
Join Date: Feb 2013
Location: Cincinnati
Region: Ohio
Posts: 681
Id definitely check the cats or I also believe in the coil pack theory. My sister had a focus that acted the same way and it ended up being that her plug wires had almost completely corroded. Replaced those and the car ran like a champ.
__________________
Torque: It's like crack for your right foot
Boomdizzle is offline   Reply With Quote
Old 02-21-2013, 09:00 PM   #24
Registered Member
Regular
 
Dantheman94's Avatar
 
Join Date: Jul 2012
Region: New Jersey
Posts: 79
What about a vacuum leak somewhere?
Dantheman94 is offline   Reply With Quote
Old 02-21-2013, 09:02 PM   #25
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
you'd be able to hear it if it's causing this much to happen
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-22-2013, 12:20 AM   #26
Registered Member
Regular
 
Michaelgranlund's Avatar
 
Join Date: Feb 2013
Location: Rocklin
Region: California
Posts: 285
Quote:
Originally Posted by 35th GT View Post

I'd say do a motor swap.. A 4.6 isn't bad on gas and you'll have power and no more of these problems.. You can possibly buy a used police crown Victoria for really cheap and swap motors
Any idea on How much would that cost? Just like an estimate for putting it in and buying it
Michaelgranlund is offline   Reply With Quote
Old 02-22-2013, 12:21 AM   #27
Registered Member
Regular
 
1slosix's Avatar
 
Join Date: Jul 2012
Region: Tennessee
Posts: 7,311
lol use the search feature and you'll find loads of threads on the subject
__________________

carving corners like a boss
1slosix is offline   Reply With Quote
Old 02-22-2013, 12:31 AM   #28
Registered Member
Regular
 
Michaelgranlund's Avatar
 
Join Date: Feb 2013
Location: Rocklin
Region: California
Posts: 285
Quote:
Originally Posted by 1slosix View Post
lol use the search feature and you'll find loads of threads on the subject
Haha i wouldn't do it I was just curious how such a procedure is even delt with
Michaelgranlund is offline   Reply With Quote
Old 02-22-2013, 11:48 AM   #29
Registered User
Newbie
 
Swar GT's Avatar
 
Join Date: Oct 2012
Region: Asia
Posts: 3
Quote:
Originally Posted by tommygrubb2001
ok, i have owned my v6 mustang for about a year now. the car has alway had issues which i have tried to fix. When we first got it the power steering pump needed replaced, we did that and it still squeals like a mother. The car has no power, very slow acceleration. I replaced spark plugs, and wires. the rpms was jumping so i cleaned the idle air control valve and replaced the gasket. also when i turn on the ac the rpms jump bad. also i replaced the fuel filter, and air filter. the mpg sucks!!!! drinks a quarter in like 20 miles. someone lead me in a good direction
The power steering pump issue is in all V6 99-04 amm the auto v6 is less powered than the manual ,, but u could pro..charge it or turbo..charge it for 4200 - 4500 $ and u may have 350 to 400 hp in wheel
Swar GT is offline   Reply With Quote
Old 02-22-2013, 01:59 PM   #30
Registered Member
Regular
 
kickerofdoom's Avatar
 
Join Date: Mar 2011
Region: Maryland
Posts: 1,868
Quote:
Originally Posted by tommygrubb2001
ok, i have owned my v6 mustang for about a year now. the car has alway had issues which i have tried to fix. When we first got it the power steering pump needed replaced, we did that and it still squeals like a mother. The car has no power, very slow acceleration. I replaced spark plugs, and wires. the rpms was jumping so i cleaned the idle air control valve and replaced the gasket. also when i turn on the ac the rpms jump bad. also i replaced the fuel filter, and air filter. the mpg sucks!!!! drinks a quarter in like 20 miles. someone lead me in a good direction
What your mpg?
kickerofdoom is offline   Reply With Quote
Old 02-22-2013, 04:22 PM   #31
Registered Member
Regular
 
tommygrubb2001's Avatar
 
Join Date: Feb 2013
Location: Ashland
Region: Kentucky
Posts: 34
i drive about 20 miles a day and drain a quarter of a tank, when i got the car it was better on gas, but it seems to just get worse and worse
tommygrubb2001 is offline   Reply With Quote
Old 02-22-2013, 05:19 PM   #32
slow281
Regular
Supporter
 
sixpac's Avatar
 
Join Date: Mar 2012
Location: Cedar Rapids
Region: Nebraska
Posts: 3,162
Quote:
Originally Posted by tommygrubb2001 View Post
i drive about 20 miles a day and drain a quarter of a tank, when i got the car it was better on gas, but it seems to just get worse and worse
Figure out your exact MPg fill it up drive about 100 miles fill up again divide exact miles buy exact gallons put in..
__________________
Need more Horsepower? Add a sticker. Contact me for vinyl stickers pre-made and custom!
Stick on Horsepower <- Click Here and like my Page!
2001 GT - True Blue
2003 V6 - Zinc Yellow
1990 LX 2.3 - project
sixpac is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



10:59 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.