Question about 2003 Chevrolet Impala

1 Answer

Where is the vacuum hose into the intake manifold for a 2003 Chevy Impala?

Posted by on

  • mindseye08 Aug 13, 2008

    we have a 2001 Monte Carlo, engine was revving high RPM's then shaking violently. Mechanic fixed in a few minutes, said it was vacuum hose. 2 days later same thing has happened. Can someone tell me where to find the vacuum hose(s) so I can reconnect myself and try to fix permanently?

  • yadayada
    yadayada May 11, 2010

    There are quite a few vacuum hoses connected to the intake, which componet that uses vacuum is not working?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 123 Answers

IF the engine was revving high RPMS it had to be a serious vaccum leak. If the PCV came undone it would cause it rev up quite high. the shaking was from the factory set RPM limiter when not in gear (around 4,000 RPMS) the only other vaccum leak big enough would be for the brake booster. They both have a check valve but that doesn't mean much. I would start there PCV is around 5 bucks and the other is about the same. If you need pics of location I could do that also.

Posted on Sep 15, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My 2003 caravan wants to studder and u put gas on it dies all sensors have been changed


You could have a vacuum leak , intake manifold , vacuum hose etc. You can check for a vacuum leak with carburetor spray cleaner , spray around the intake an hoses an listen for engine RPM change . How To Find Vacuum Leak EricTheCarGuy

Oct 27, 2015 | 2003 Dodge Caravan

1 Answer

How to fix oil leaks in chevy ss impala 1996



Instructions

1. Removal

Unscrew the bolt that holds the negative connection to the Impala's battery. Set this bolt aside for later use.

Remove the engine cover to access the intake manifold and manifold gasket. Disconnect the throttle body inlet duct from the engine.

Twist off the radiator cap to allow draining of the coolant to flow more smoothly. Place an empty container beneath the radiator's drain plug, and remove this plug. Allow all of the engine coolant to drain into the empty container. Replace the drain plug once you are finished.

Tag all of the electrical wiring and hoses before removing so that reconnection is precise to factory settings. Remove these parts, individually, from the intake manifold.

Loosen the bolts that hold the intake manifold to the Impala's engine block. Lift the intake manifold from the block once all bolts have been completely removed.

Use the flat-head screwdriver to pry the old intake manifold gasket from the engine block. Discard this part once you have removed it.

Clean the engine block thoroughly with the engine degreaser and linen cloth. If necessary, use a gasket scraper to remove excess buildup and grime.

2. Installation

  • Coat the top and bottom of the new intake manifold gasket with a chemical sealer so that it bonds to the engine block securely. Position this new manifold gasket so that it lines up perfectly with the cylinder ports of the Impala's engine block.

Place the old intake manifold on top of the newly-installed manifold gasket until it aligns with all of the holes of the cylinder flanges and manifold gasket.

Attach all of the bolts with your hand to the manifold. Once all bolts have been positioned, use a torque wrench and apply 15 foot-pounds of pressure to the bolts to secure the manifold into place.

Reconnect all of the necessary hoses and electrical wiring to the intake. Pour the engine coolant back into the radiator.

Reattach the engine cover on top of the intake manifold and engine block. Start the Impala's engine and check for any leaks around the new intake manifold gasket.

Jul 08, 2012 | 1996 Chevrolet Impala SS

1 Answer

Replace no 3 coil


if im not mistaken the number 3 coil is on the right hand side of the motor so you will need to remove the intake manifold to gain access to it.
Intake Manifold Removal
  1. Remove the engine cover (if equipped).
  2. Remove the air filter outlet pipe.
  3. Remove the positive crankcase ventilation hose.
  4. Remove the air cleaner resonator.
  5. Disconnect the throttle body electrical connectors.
  6. Disconnect the electrical connectors.
  7. Detach the vacuum hoses.
    • Press the retaining ring. (1)
    • Detach the vacuum hose. (2)

  8. Disconnect the vacuum hose.
  9. Detach the injector harness electrical connector from the intake manifold support bracket.
  10. Remove the intake manifold support bracket.
  11. Detach the engine wiring harness bracket.
  12. Detach the intake manifold support bracket.

    NOTE: Remove and discard the O-ring seal.
  13. Detach the throttle body.
    • Remove the retaining bolts.
  14. Remove the intake manifold.
    • Remove and discard the intake manifold gaskets.

Apr 22, 2012 | 2003 Jaguar X-Type

1 Answer

What can cause a cylinder 1 misfire in a 2003 Chevy impala with a 3.4 liter engine


Misfire reasons.
Bad ignition coil (there are 3 of them), bad spark plug, bad spark plug wire (most common) defective fuel injector, intake manifold vacuum leak, low cylinder pressure due to burnt valves or scored cylinder walls.

Sep 25, 2011 | 2003 Chevrolet Impala

2 Answers

Thermostat housing location


This is for the 3.1L and the 3.8L:


c17hydro_66.gif
This is for the 3.4L:


c17hydro_67.gif
And this is for the 3.5L:


c17hydro_68.gif

Dec 12, 2010 | 2003 Chevrolet Impala

1 Answer

Where is the thermostat on the 2006 chevy impala


If you have the 3.8 just follow the uper radiator hose to the thermostat.If you have the 3.1 you will need to remove the intake manifold or the exhaust manifolds.

Jan 30, 2010 | 2006 Chevrolet Impala

1 Answer

2002 Mitsubishi Galant gets poor acceleration.


LOOK AROUND THE AIR INTAKE HOSE.MAKE SURE IT IS INTACT NOT LOOSE.CHECK ALL VACUUM HOSES ON INTAKE.MAKE SURE THEY ARE IN PLACE.

Aug 17, 2009 | 2001 Chevrolet Impala

1 Answer

2003 Chevy Impala LS idles high (2000+ rpm's) in P and N only


CHECK IT FOR VACUUM LEAKS. INCLUDE THE EGR VALVE, VACUUM BOOSTER, INTAKE GASKETS, ETC. ALSO CHECK THE THROTTLE BODY IT MAY BE HELD OPEN BY THE THROTTLE CABLE.

May 16, 2009 | 2003 Chevrolet Impala

2 Answers

Chevy impala2002


A P0300 code is a random cylinder misfire code and could be caused by a bad plug, plug wire, or fuel injector. The P0171 is bank one o2 sensor is reading lean w/ both of these combined could mean a vacumm leak.. Hope this helps.

Nov 26, 2008 | 2003 Chevrolet Impala

4 Answers

Changing spark plugs 2003 Impala 3.4 eng. i.e. removing and reinstalling upper intake manifold


I have a 2003 chevy Impala and it's not so difficult. Try using a small ratchet that fits in the palm of your hand, I can't remember what it is called. To install the plugs use an extension and put a couple of the card board pieces from one of the spark plug boxes in between the new spark plug and the spark plug puller socket, this will hold the new plug in place while you work with the extension. When screwing in the plug you will have to go by feel so move the extension back and forth like a light jiggle while turning to avoid cross threading the plug. After the plug is tightened attach the ratchet and slightly torque into place.

May 22, 2008 | 2003 Chevrolet Impala

Not finding what you are looking for?
2003 Chevrolet Impala Logo

782 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...