1991 Lx 5.0 Need Help!!!
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Old April 17th, 2009, 05:48 PM   #1
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1991 Lx 5.0 Need Help!!!


Just Bought this car about 1 month ago from a older lady ....heres the problem!!!....The car has no power ..off the line the car dose not spin theres is nothing there ..if you have any info please respond...thanks
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Old April 17th, 2009, 06:36 PM   #2
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Originally Posted by Jon5.0MD View Post
Just Bought this car about 1 month ago from a older lady ....heres the problem!!!....The car has no power ..off the line the car dose not spin theres is nothing there ..if you have any info please respond...thanks
Automatic?
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Old April 17th, 2009, 07:21 PM   #3
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Originally Posted by Jon5.0MD View Post
Just Bought this car about 1 month ago from a older lady ....heres the problem!!!....The car has no power ..off the line the car dose not spin theres is nothing there ..if you have any info please respond...thanks
They lied to you! N/A 4 cyl under the hood! Might want to double check that.

I know, not much help, but good luck! I hope you can figure it out.
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Old April 17th, 2009, 07:28 PM   #4
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Originally Posted by Jon5.0MD View Post
Just Bought this car about 1 month ago from a older lady ....heres the problem!!!....The car has no power ..off the line the car dose not spin theres is nothing there ..if you have any info please respond...thanks
I am gonna have to agree with Darrell here. If its an auto and a vert its gonna be a slug.
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Old April 17th, 2009, 07:50 PM   #5
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It's a ..auto and it is a V8 ..Im not that crazy lol
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Old April 17th, 2009, 08:03 PM   #6
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Originally Posted by Jon5.0MD View Post
It's a ..auto and it is a V8 ..Im not that crazy lol
Yeah, auto + vert + stock = SLUG

Time for some mods.

How many miles on the car, have you done a tune up?
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Old April 17th, 2009, 09:27 PM   #7
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Originally Posted by Jon5.0MD View Post
It's a ..auto and it is a V8 ..Im not that crazy lol
Stock Automatic 5 liter Mustangs don't experience much tire spin unless you do a brake stand. Being a heavy convertible makes it even worse.
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Old April 18th, 2009, 01:28 AM   #8
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I agree.. put that pig on a diet, advance your timing and run premium.. then save for a shift kit and torque converter too wake her up some
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Old April 18th, 2009, 02:07 AM   #9
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gears would also give you some get up and go
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Old April 19th, 2009, 08:57 AM   #10
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u need gears
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Old April 19th, 2009, 11:01 AM   #11
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tune up. timing, cold air. underdrive pullys. SUPERCHARGE IT. ha ha
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Old April 19th, 2009, 12:06 PM   #12
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back when these mustangs were new, automatics were a full second slower than the stick mustangs
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Old April 19th, 2009, 01:44 PM   #13
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tune the car up, get a higher stall tq converter, shift kit, gears, loose some weight (in the car)......

should be a nice lil start.
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Old April 19th, 2009, 10:59 PM   #14
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yea definetly gotta start w/ some mods
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Old April 19th, 2009, 11:16 PM   #15
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I got a 92 LX 5.0 Auto hatchback. I got it 100% stock (even had the Ford oval on the stock mufflers).

they are very slow. I've only seen 1 auto hatch 5.0 LX that ran pretty quickly and that was an 87 and the guy didn't know why.

try putting a 3.73 gear in it. that should really perk up the go factor.
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Old April 19th, 2009, 11:16 PM   #16
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more than likely if it cam from an older lady it has alot of carbon build up inside the engine. seafoam it a couple times and go WOT a few times after the seafoam and it should blow alot of that shit right out the pipe.

my buddy got a 73 chevelle from an older lady and it took a couple weeks to get all the carbon build up out of the engine. wot felt like poop.
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Old April 20th, 2009, 01:03 AM   #17
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Whats all this about stock 5.0's being slugs..? Not sure about the autos.. ive never driven one. (mine is a manual...with stock gears) But when I put it in 1st and let the clutch out... then stomp it to the floor, it will spin from lane to lane until I let off the gas. Never know what's gonna happen.. its squirrely as hell. You have to granny drive it in wet weather...because if you get on it in 3rd gear you will almost end up in the ditch. (don't ask) I cant imagine what low gears would be like.

I dont think the engine is even modded.. stock heads, stock intake etc. but it does have a few small things that I know of. mac 1-5/8" equal length shorty headers, No cats, flowmaster exhaust, cold air intake, underdrive pulleys, smog pump delete. Nothing to really make a difference.
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Old April 20th, 2009, 01:47 PM   #18
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Originally Posted by flyin ryan View Post
I agree.. put that pig on a diet, advance your timing and run premium.. then save for a shift kit and torque converter too wake her up some

with such low compression, would it be benificial to run premium at all? i heard it make no difference bc of the low compression of the 302, id appreciate the correction, thanks
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Old April 20th, 2009, 02:23 PM   #19
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no it doesnt really make a difference unless you advance your timing to a point where it is neccessary
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Old April 20th, 2009, 02:44 PM   #20
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I would get rid of the cats....depending how many miles its possible they are clogged. like others said a set of gears, contact dan his screen name is silverfox at Click Click Racing about getting a built valve body (faster and harder shifts) and depending on if you are going to mod it a stall converter. Also if you are going to mod it he can tell you the tricks and sell you the better parts to build the trans to hold some serious HP like 700-1000 HP, but first get that exhaust breathing better and if it was an old lady it probably still has the air box in it....get rid of that and maybe bump the timing
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