70 Mustang P/S control valve problem!! HELP!!

[tman 10]

Could really use some help!! I replaced my p/s control valve on my 79 Mach 1 due to sloppy and sparatic steering. After replacing the valve within minutes I had no power steering at all!!! I thought I had a defect so I put a second one on and the same thing happened! The car has virtually no power steering and in fact is probably harder to turn than manual.. OH y:taz: ea... I even replaced the power steering pump. Can anyone please help!!!

 

tman

[bnickel 10,004]

did you put fluid in it? seriously though sounds like it could be the ram assist cylinder or maybe blockage in a hose.

[tman 10]

yes we put fluid in it.. in fact we were told to put trans fluid in it.

 

I had power steering until I replaced the valve.

 

thanks for the help!

[tman 10]

on second thought .... Are you asking if we put fluid in the valve itself before installation? Obviously after removing the hoses going to it we had to replace the fluid in the power steering pump which I assume got to the valve.

[bnickel 10,004]

on second thought .... Are you asking if we put fluid in the valve itself before installation? Obviously after removing the hoses going to it we had to replace the fluid in the power steering pump which I assume got to the valve.

 

 

it was just a joke really. but trans fluid is correct and you don't have to fill the valve first. it's quite common for people to reverse the hoses at valve but that USUALLY resluts in the steering wheel flailing about, but it's possible that you may have done that.

[tman 10]

thanks for the advice! At first we did think the hoses were reversed but I'm pretty sure they're correct. fyi.. nothing sparatic happend with the steering wheel .... other than NO power steering.

[bnickel 10,004]

thanks for the advice! At first we did think the hoses were reversed but I'm pretty sure they're correct. fyi.. nothing sparatic happend with the steering wheel .... other than NO power steering.

 

 

like i said that's just what usually happens, but not necessarliy always. i'm still betting some kind of blockage in one of the hoses.

[Spoofty 10]

I know when I've done things to my steering I have to turn the wheel from lock to lock a couple of times to get all the air out of the lines. This is normally only needed when the ram is empty, but if you haven't done it it's worth a shot.

[tman 10]

done that too!! we kept turning the wheel from left to right with the engine off and the wheels off the ground to rid any air. no help!!

 

Any possibility the ram is bad??

[Spoofty 10]

done that too!! we kept turning the wheel from left to right with the engine off and the wheels off the ground to rid any air. no help!!

 

Any possibility the ram is bad??

 

I've always done it with the engine running and the car on the ground. With the engine running the pump is pumping the fluid and with weight on the tires the valve is opening properly. Remember to keep checking the fluid level.

 

I would say if it worked before the the ram is probably fine.

 

Is this a new valve, rebuilt one or did you rebuild the one from the car?

[tman 10]

I bought a rebuilt one and replaced it again after thinking it was defective.

[Spoofty 10]

You could try disconnecting the pressure hoses to the ram run the engine and give the wheel a quick turn each way. If fluid spays out of the hoses then maybe your ram is bad! But maybe someone else has a better way to check.

[tman 10]

I installed a rebuilt one and then another... after I thought it was defected.

 

Just can't figure this one out!

[tman 10]

Thanks Spoofty! I'll Try Just About Anything!!

[DarkBuddha 107]

Did you connect the hoses backwards possibly? That can cause seriously funky stuff to happen.

[buening 63]

You could try disconnecting the pressure hoses to the ram run the engine and give the wheel a quick turn each way. If fluid spays out of the hoses then maybe your ram is bad! But maybe someone else has a better way to check.

 

This was my thoughts exactly. Just make sure you have one person watching the hose and the other person in the car to turn the car off ASAP. You only want it to run long enough to see fluid pressure from the line. Does the pump make any kind of noises when the car is started? Does it make any noises when you turn the wheel from lock to lock? If there were a blockage, i'd think the pump would be making some crazy noises when you turn the wheel. Me thinks the pump is bad, but let us know what you find out.

[tman 10]

No whinning noise coming from anywhere at anytime!

 

I know that whinning sound when a p/s pump goes bad or low on fluid and there is no noise!

[tman 10]

OK!! Out of pure desperation I got another p/s pump and and installed it.

Now I do have power steering only to the left!!! The wheel is still hard to turn to the right! Now what???