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02 Alero with 161,000 miles v4 engine sounds like an airplane but cranks, drives, and shifts just fine no shaking No exhaust leaks, tires good, air filter box closed wheel bearings good. Any ideas?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 1988 chevy suburban shakes at 55mph and up..

sounds like shot tie rods or possibly pitman arms

Posted on Mar 13, 2009

mecanica03
  • 881 Answers

SOURCE: Vibration on acceleration

when some vheel missing weight , the vibration begins at 40-45 mph, now if begins at any moment of acceleration ,check inner drive shafts , no outer joints

Posted on Apr 20, 2009

  • 75 Answers

SOURCE: grinding noise while driving.

Possible causes:

a) a brake disc shield is too close to the disc, and it's coming into contact in the circumstances you outline

b) pebbles stuck between the disc shield and the disk

c) dried out wheel bearings

d) worn Universal Joints in the drive shafts

e) worn A/C pump

f) worn alternator

g) worn water pump

Is the noise still present above 15 miles an hour and past 1500 rpm when the clutch is disengaged (i.e. gearbox in neutral?). The answer to this question may help you to pinpoint the source. I know it's stating the obvious but the fact that you're hearing a grinding sound means it's caused by something that is moving relative to something else. Again this should help narrow down the cause.

Posted on Jun 01, 2009

  • 532 Answers

SOURCE: 2004 expedition, when brakes applied steering wheel vibrates

check the idler arm on the steering drag link

Posted on Nov 15, 2009

Testimonial: "Thanks I been busy I'll check it out this weekend and get back to you."

madcox
  • 103 Answers

SOURCE: I am getting a loud Whining noise from the back of

Exactly. Change the bearings.

Good luck.

Posted on Apr 13, 2010

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2 Answers

I am in the market for a 1997 to 2004 Cherokee


Rule of thumb, stay away from any engine that ends in .7 02 and 03 was a new engine design, not very good. 04 and up, the engine is better. I would shy away from older ones because it is hard to find good/new drive train parts.

May 21, 2016 | 1999 Jeep Grand Cherokee

1 Answer

I am getting po171 on my 1996 jeep


only that code???????
which engine? of the 3. (ill pretend 4 liter I-6,)
how many miles one engine, and do you service it? fully?
the fsm covers this. need that?
171 is lean AFR. lean AIR/FUEL/RATIO. (or lean fuel mix)
it means the 02 front sensor B1S1 is lean.
the fsm lists 10 causes after a new 02 , dont cure it.
first is low fuel pressure.
in geek speak (ASE) it means fuel trim show gross lean.
the OBD2 systems have trim level trip points.
if you were to scan the PCM youd see LTFT way the heck off.
and id fix that first.
the 171 means the 02 is stuck at 0v. super lean.
or is shifted lean,, only looking at it with a scope or scan tool shows
you what it is DOING.
if stuck at 0v, idling, its bad, the sensor or there is and exhaust leak
allowing outside 20% oxygen to hit this sensor and slam it horrid lean for ever.
that is why you just scan it and look. not just a useless code reader.
good scan tools you can scan and graph the 02,
and see this.
if i dont see this, i then work this full time. with a battery of tests.
there are many causes.. over 20.
http://www.fixkick.com/ECU/Authority/A_Full_OBD2_scan.html

see blue line in the full scan graph?
we can scan and graph 12 values at once, 1996 car too. any car.
see DSO photos(scope)

the full manual is here chapter 9 cover this 100%

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service


me,. i try an new 02 , and with that i know it can't lie.
and then use the to find why.
weak MAF (Dirty)
intake leaks (maf engines)
exhaust cracks. hoepless this.
gross misfire sends 20% oxgen down stream, so i look for misfire like a hawk. felt , heard or see engine shake that is misfire.
low fuel pressure 58psi is good.
those are the big ones.

good luck.

btw, if a V6? or other V engine
a bad maf will cause both banks to go lean. (mines a 3.8L v6)
so.............. no engine stated, no details....


Mar 01, 2014 | 1996 Jeep Grand Cherokee

1 Answer

No clue what is wrong... and apparently neither does my mechanic...


sounds like you got some water in your gas ,, or your mass air flow sensor is shorting out , or dirty

Jan 28, 2014 | Toyota Corolla Cars & Trucks

1 Answer

Air leak in vacuum or evap system


best to see a mechanic. Check PVC value, Check hose connections

Jul 09, 2013 | 1999 Suzuki Grand Vitara

1 Answer

1994 RANGER 4.0 6CYL 2WD


Is it an automatic or manual trans ?
An automatic should downshift when you push on the gas pedal. The shaking could be a miss-fire or lack of fuel. The noise could be a knock from the engine or something in the exhaust system.
The freaking jet noise could be an exhaust leak or something going on with the air cleaner or a vac leak.

Dec 05, 2012 | Cars & Trucks

1 Answer

Why my oldsmobile alero 1999 wont keep water in


CHECK FOR COOLANT LEAKS AROUND THE RADIATOR LOOK DOWN BETWEEN COOLING FANS AND RADIATOR SIDES FOR SIGNS OF ANTIFREEZE.CHECK ALL RADIATORS HOSES AND HEATER HOSES.IF ALL LOOK GOOD CHECK ENGINE OIL FOR COOLANT LEAKS.IF OIL LOOKS LIKE MILK SHAKE COOLANT LEAKING IN CRANK CASE.YOU HAVE A HEAD GASKET LEAK.YOU NEED TO CHANGE OIL + FILTER. GET THE HEAD GASKET FIX.BECAUSE LEAK IN THE CRANK CASE WILL LOCK UP THE ENGINE.IF CRANK CASE OIL LOOKS OKAY.YOU DONT HAVE THE COOLANT CORRECT MIXTURE.YOU SHOULD HAVE 50/50 ANTIFREEZE AND WATER.

Apr 23, 2011 | 1999 Oldsmobile Alero

1 Answer

I am driving a 2006 KB 250 fleetside, just over 101250km. This is my first diesel vechile and i`m abid worried about my fuel consumption. Done a trip to luderitz recently and used about 38 lts for 390 km...


The injectors have o-rings that will wear and cause fuel leak into engine and cause same smoke problem ,but glow plugs are only for engine firing.........you can change o-rings only but if it has lot of miles i would do injectors...
however make sure the fuel rail isnt leaking at injector connection.also check exhaust for excessive heat or noise inside cat.converter if you can shake it.....some come apart inside.....
it would be worth having the engine scanned to make sure 02 sensors are good..they control air/fuel mix and if oxygen level is incorrect it will burn more fuel and sometimes fuel scent but not very bad.

Feb 19, 2011 | 1985 Isuzu Pickup

1 Answer

My 1999 Alero makes a noise like a Twin Prop airplane when you drive. Gets louder the faster you go. The brakes were just replaced.


CHECK FOR LEAKING OR LOOSE SPARK PLUG OR LOOK FOR A EXHAUST LEAK AROUND CATALYTIC CONVERTER TO MUFFLER.

Mar 30, 2010 | 1999 Oldsmobile Alero

1 Answer

Whining sound


They do whine in four wheel drive but not in two wheel drive normally

May 22, 2009 | 1999 GMC Sonoma

2 Answers

Engine Shaking.


they changed the timing belt? if so they put it wrong, its probably off a tooth. take it back and make them recheck their work

Apr 20, 2009 | 2002 Honda Accord

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