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Topic: Loss of power during left turns (Read 3429 times) previous topic - next topic

Loss of power during left turns

Something I've noticed on my 87 5.0L Tbird is that when turning left, any harder than just a normal easy turn, I lose engine power. It seems to have to do with momentum, as it happens when I make the turn at faster speeds. I could go around a highway bend at 55MPH and punch it, and it just doesn't put out any go. Or, I can take off from a stop and swing a left and midway through the corner, it just coasts, and then regains power. It does this more when there's less fuel in the tank. Does anybody else have this happen?

Loss of power during left turns

Reply #1 –
I'll bet the fuel tank needs to be replaced. There's a reservoir that the pump fits in. It keeps gas from leaving the pump when you turn or accelerate. It's tack welded in, and those welds can give way and the pan starts to move around. I reached under the car and smacked the tank, and could hear the pan moving around.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Loss of power during left turns

Reply #2 –
What Vinnie said , or it could be something as simple as the incorrect fuel strainer on the pump.
Fox-less at the moment

Loss of power during left turns

Reply #3 –
The strainer/sock may have come off of the pump as well.

What sucks is the only way to find out is to drop the tank and take a look inside, which is not fun.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Loss of power during left turns

Reply #4 –
I had the exact thing happen to a cutlass I owned and it was the strainer fell off so it's just pulling gas from the small tube... Your lucky though mine would stall.
:ford::oldcougar::mercury:

Loss of power during left turns

Reply #5 –
Sou
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Loss of power during left turns

Reply #6 –
I'm sticking with loose baffle.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Loss of power during left turns

Reply #7 –
Sounds like you are low on your left blinker fluid.  Sorry, couldn't resist!

Loss of power during left turns

Reply #8 –
Several have reported similar problems, mine does it on a hard launch and the baffle is in place...

Keep the tank at least half full, problem solved...

Loss of power during left turns

Reply #9 –
Mine starves sometimes, but only when I'm sliding it sideways or doing something with really extreme lateral Gs. I'm gonna have a look in the tank to check on the hose and baffle. I'll report my findings. I should probably take some pictures of the opening I made in the floor of my trunk for quick fuel pump access too, incase anyone else wants to do the same. I highly reccomend it.

turbo charged 94 Cobra engine/440cc injectors/megasquirt /5 speed swapped (T5)/maxbox upper intake/70mm PP throttle body/AJE coilovers/2003 Mustang control arms/S.T. sway bars/ES rear control arm bushings/11" brake conversion/manual rack conversion/8.8 TC rear with rear discs and a welded diff/3.73 gears/PLX wideband/199mph speedometer/Aeromotive FPR/CNC hydraulic hand brake/cobra R wheels/....ect.

Loss of power during left turns

Reply #10 –
Interesting. I never had this problem before having the fuel filter replaced.

I swear, I've had more shiznit on this car broken by a service shop than anything else.

Loss of power during left turns

Reply #11 –
I have the same problem with my daily driver DeVille, whenever it gets below 4 gallons, it will  near stall on right hand turns.  I read somewhere that it was caused by the baffles coming loose over time and making the fuel pump starve on right hand turns.  I just make sure to keep it above 5 gallons and have no issues.
[SIGPIC][/SIGPIC]

My Bebe! 1980 Thunderbird, 302 & AOD are the only option boxes checked

Loss of power during left turns

Reply #12 –
Filter is on the discharge side of the pump so I doubt that has anything to do with it itself.  Fuel pump overheating, soft rubber line between the pump discharge and the hard line leaving the tank, tank has all kinds of  in it and when making a hard turn the fuel sloshes all the debris over the sock, sock is missing, or the baffle is loose.  Either way you chalk it up pulling the tank is about a 1 hour job and if you do it replace the pump, sock, and soft rubber line.

Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Loss of power during left turns

Reply #13 –
Quote from: TOM Renzo;369163
Sounds like the connector hose is cracked.....



Yup....been there done that.
That 10 cent piece of rubber hose in the tank gave me fits with my 89 Lincoln MK VII with super low fuel pressure.
Alan Mackin--Semi Professional Ford der
83 T-Bird 460
83 T-Bird Heritage 5.0
84 T-Bird 5.0
86 T-Bird Turbo Coupe NHRA Stocker & Super Stocker
87 T-Bird Turbo Coupe
88 Bronco II Drag truck 302
95 Mustang GT auto
2004 F-350 CC Dually V-10

Loss of power during left turns

Reply #14 –
Also
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!