weird noise ,steering wheel vibrating, Horrible MPG- WTF

[ibr_adam09]

i dont know if any of those problems are relative to each other but let me elaborate , now normally i like to solve things on my own but i don't want to make a costly mistake of replacing things as cash is tight right now
Anyways

1. when my car is idling the steering wheel ever so slightly vibrates

2. i am literally averaging about 300 miles to a tank

3. the weird noise is something i cant explain but almost like a slight hissing near the crank pulley ( at least its gets louder when closer to the crank pulley side and its pretty distinctive, NOT a quiet engine

- i did run 1/3 of a can of seafoam in the intake , used fuel injector cleaner in the fuel system
my still bogs under 2.5 k bout 2wice a week , little less now after sea foam

i am thinking the fuel filter could be the culprit

- as far as the noise i can rule out any air leaks , i dont have any and the alternator b/c its new

- still puzzled about the slight vibration , maybe it relates to the noise near the crank

as far as for those problems the H still runs "acceptably" strong ( when it wants too )

[johnl]

I don't know what the problem is, but if it were my car and all I had to go on was what you've said, I'd try experimentally removing the power steering belt...

[BBuncky2]

i dont know if any of those problems are relative to each other but let me elaborate , now normally i like to solve things on my own but i don't want to make a costly mistake of replacing things as cash is tight right now
Anyways

1. when my car is idling the steering wheel ever so slightly vibrates

2. i am literally averaging about 300 miles to a tank

3. the weird noise is something i cant explain but almost like a slight hissing near the crank pulley ( at least its gets louder when closer to the crank pulley side and its pretty distinctive, NOT a quiet engine

- i did run 1/3 of a can of seafoam in the intake , used fuel injector cleaner in the fuel system
my still bogs under 2.5 k bout 2wice a week , little less now after sea foam

i am thinking the fuel filter could be the culprit

- as far as the noise i can rule out any air leaks , i dont have any and the alternator b/c its new

- still puzzled about the slight vibration , maybe it relates to the noise near the crank

as far as for those problems the H still runs "acceptably" strong ( when it wants too )

1. I get 300 miles to the tank, MAX...and I would like to follow this to try to improve my mileage (I also suspect my filter, among other things).

2. The shuddering usually occurs when one or more motor mounts is going bad or is bad. If it is your motor mounts, then it happens at lower RPMs because of the slower rotation of the engine. As the engine slows down, it no longer is turning fast enough to cancel out any instabilities due to that motor mount. Think about swinging an object on a long string. As you swing it in a circle slowly, your arm is moving more to follow that object's "resonance". As you speed up the spin, you keep a more tight radius as you cancel out the forces.

3. I had that noise when accelerating when I was starting to get an exhaust leak. I had it for two years until I got the motivation to change my headpipe.

[vietkid_2006]

probably motor mounts that's causing the vibrations.

[ibr_adam09]

I don't know what the problem is, but if it were my car and all I had to go on was what you've said, I'd try experimentally removing the power steering belt...

dont have ps

for the vibrations, is there a full proof way too see which motor mount is failing

[johnl]

Place the car in 1st gear (or Park), then vigorously push / pull it forward and backward. As the engine (or auto trans) takes the load the engine will rock forward or backward. Watch to see which mounting seems to be moving excessively.

[BBuncky2]

Place the car in 1st gear (or Park), then vigorously push / pull it forward and backward. As the engine (or auto trans) takes the load the engine will rock forward or backward. Watch to see which mounting seems to be moving excessively.

Johnl...you always come to the rescue!

[Losiracer2]

i would suggest buying an energy suspension motor mount insert for the front mount, it helps A LOT with the movement of the engine. Its only 15 bucks on ebay shipped I believe.

[ExplodingCake]

Most common to go out are the front and rear mounts.