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How does vacuum line run from manifold to hvac on gm sonoma ?

How and where does the vacuum line run from the throttle body to hvac ?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 625 Answers

SOURCE: 2000 mazda miata r&r throttle body

se if egr is controled by vacium or electric
if it is by vacium then locate the egr solenoide and make sure it has vacium in one hose w/ engine runing if it does then replace solenoide

Posted on May 31, 2008

inf12
  • 13 Answers

SOURCE: intake manifold vacuum line

THIS IS FOR TURBO ENGINE
13b2405.jpg NON TURBO ENGINE
6781864.jpg

Posted on Feb 08, 2009

  • 149 Answers

SOURCE: 1991 S10 2.5L throttle body idles to fast

A vehicle that old will suffer from brittle and cracked vacuum lines. I would say there is a bad, or several bad lines leaking away vacuum from the intake manifold. Don't forget to check the hose going to the PCV on the valve cover. A vacuum leak will also cause the engine to stumble and miss intermittently when idling.

Posted on Jun 26, 2009

  • 1 Answer

SOURCE: 2000 Mitsubishi sedan with 6G74 V6 engine. Vacuum

I could tell you, but 1st you would need to sign up for my premium assistance plan.
The cynic in me was confirmed by your reply.
thanks anyhow

Posted on Feb 05, 2010

bluebirdmate
  • 1190 Answers

SOURCE: The plenum boot between the intake manifold and

Hello, You have to remove the intake manifold.

Posted on Sep 04, 2010

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On a 84 porsche 944 where do the vacuum lines go to on the fuel rail 2 regulators. Where do they connect from regulators to where?


If it's not a turbo, the vacuum lines for the damper and regulator go to the vacuum nipple on the throttle body that is underneath the assembly and on the manifold side of the throttle plate. The other vacuum hose that is connected there is ported, on the non manifold side of the plate. If it has vacuum when the throttle is closed, it is on the manifold side. You'll need a vacuum tee to join them into one hose to connect to throttle body nipple.

Jul 21, 2015 | Porsche Cars & Trucks

1 Answer

Where is the fuel pressure sensor located on the 97 v6 gmc sonoma pick up


It is on the fuel rail It kinda looks like a top hat and will have a vacuum line running to it. Look around the throttle body area along the fuel rails.

Mar 01, 2013 | Cars & Trucks

1 Answer

I need a vacuum line diagram fo a 1996 Chevy Lumina, 3.1. One line that is not connected to anything, is located at the top of the engine.


Sorry I don't have the diagram, but I do have a diagram of the engine and component locations. Your vacuum system is fairly simple. You have a MAP sensor attached to the air cleaner. I have pasted a picture below. It has one electrical connector and one vacuum hose that goes to the intake manifold or the throttle body.
Behind the right headlight is your evap canister. This will have a hose or line running to the fuel tank. Then it will have another hose going to the purge valve. The purge valve should be close by and it has a connector plus another hose that goes to the intake manifold.
Then you have the PCV hose that goes from the PCV valve in the valve cover to the air cleaner or intake manifold. I think yours just has a hose from the air cleaner and the rest is internal.
There is one more vacuum hose, and that is the bog one that goes from the intake manifold (or throttle body--looks to me like there are a couple of vacuum ports on the back side of the throttle body, and there may be a "T" on one of the hoses) to the brake booster. It this one was off, the engine would not run, as the vacuum draw is large. Please let me know if you cannot figure it out from these instructions and provide a picture, if you can.

MAP sensor:
jturcotte_653.jpg

purge valve:
jturcotte_654.jpg

jturcotte_2455.gif
jturcotte_2456.gif

Oct 30, 2011 | 1996 Chevrolet Lumina Mini

1 Answer

I have a 1987 s10. I need to figure out where the three vacuum line coming out of the transmission are supose to go. I bought the truck with just the vacuum lines hanging from underneith the truck.My 4...


The three lines hanging under the truck connect to a valve on top of the 4x4 transfer case, this is why the 4wd does not work. As for the throttle body lines there should be a diagram on the radiator support that explains that. You should have one large line that goes to the PCV valve, a small line going to the air cleaner, a small line connected to the MAP sensor and possibly another connected to a valve that controls the EGR valve. Your fifth line should connect to a port on the manifold that supplies vacuum to a tank that is the vacuum source for the HVAC control doors and the front axle engagement system. The axle engagement system is what the line hanging by the transmission under the truck is for.

Jun 03, 2017 | 1987 Chevrolet S-10 Pickup

1 Answer

Ford focus 1999 1600 poor engine running misfires at about 2500/3000/then cuts out starts straight away for a short time then does it again already had tank out and checked inside replaced plugs and leads...


Sounds like its time for a new timing belt and its idler pulley. The old belt has more than likely slipped a notch or two. Ford suggests they get replaced at 75000 to 80000 miles. Replacing the timing belt is an extremely difficult task. If its not lined up correctly engine failure will result. Could also be a vacuum leak. Check all vacuum lines paying particular attention to vacuum lines running from the intake manifold and on the throttle body. Check the vacuum line under the throttle body. Any vacuum line (rubber) that turns your fingers pitch black with a light touch has or is about to fail.

Jul 31, 2011 | 2000 Ford Focus

1 Answer

Having problems with truck. it is a chevy k1500, 350 small block, throttle body fuel injected. We just replaced one fuel injector that machine read was bad. Now after being started it sucks air and...


Hello: Check the vacuum line going to the brake booster and all the other vacuum lines coming off the throttle body and manifold. If your truck is throttle body its an older truck. It may be a good idea to replace all vacuum lines.

Feb 08, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

Where is the carb on a jeep grand cherokee 1993 4.0 liter


There is no carburetor on any of the 6 cylinder or 8 cylinder Jeep Grand Cherokees. They have Fuel Injection and a throttle body which looks like a carburetor scaled down.

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Instructions on how to remove and replace the throttle body follow:

Throttle Body REMOVAL & INSTALLATION
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hoses from upper bonnet, unfasten the retaining clips and remove the upper bonnet assembly.
  3. Remove the lower bonnet retaining bolts and lower bonnet.
  4. Remove the throttle cable and the return spring.
  5. Disengage the wire harness connector from the injector.
  6. Disengage the wire harness connector from the WOT switch, ISA motor and TPS.
  7. Disconnect the fuel supply and return lines from the throttle body.
  8. Tag and disengage the vacuum hoses from the throttle body assembly.
  9. Disengage the potentiometer wire connector.
  10. Loosen throttle body retaining bolts and remove throttle body assembly from the intake manifold. To install:
  11. Clean the intake manifold and throttle body mating surfaces of old gasket material.
  12. Install a new gasket and the throttle body assembly. Tighten the mounting bolts to 16 ft. lbs. (21 Nm).
  13. Engage the potentiometer wire connector.
  14. Engage the vacuum hoses to the throttle body.
  15. Engage the fuel lines to the throttle body.
  16. Engage the WOT switch, ISA motor, TPS, and injector electrical connections.
  17. Install the return spring and throttle cable.
  18. Install the lower bonnet and fasten the retainers.
  19. Install the upper bonnet assembly, retaining clips and vacuum hoses.
  20. Connect the negative battery cable.
  21. Start the vehicle and check for fuel leaks. Fig. 1: Exploded view of the throttle body and related components 86745g41.gif
prev.gif next.gif

Aug 17, 2010 | 1993 Jeep Grand Cherokee

2 Answers

Need to replace the intake manifold


3.8L Engine (most common) Upper Intake Manifold To Remove:
  1. Drain the cooling system.
  2. Remove or disconnect the following:
    • Negative battery cable.
    • Fuel injector sight shield.
    • Air cleaner intake duct.
    • Right spark plug wires from the ignition control module and reposition.
  3. Relieve the fuel pressure.
  4. Remove or disconnect the following:
    • Fuel rail assembly.
    • Brake booster hose from the vacuum source manifold in the upper intake manifold.
    • Exhaust Gas Recirculation Valve (EGR) wiring harness heat shield nut, bolt and the EGR heat shield.
    • Throttle body support bracket upper bolt.
  5. Disconnect the electrical connectors from the following:
    • EVAP purge solenoid
    • Throttle Position (T/P) sensor
    • Idle Air Control (IAC) valve
    • Manifold Absolute Pressure (MAP) sensor
    • Mass Air Flow (MAF) sensor
    • EVAP purge solenoid vacuum line from the throttle body.
    • Accelerator and the cruise control cables with the bracket from the throttle body.
  6. Remove or disconnect the following:
    • Upper intake manifold bolts and stud.
    • Clean the upper intake manifold bolt threads.
  7. Remove or disconnect the following:
    • Upper intake manifold by lifting the back of the intake and sliding the manifold forward from the throttle body support bracket.
    • Upper-to-lower intake manifold carrier gasket from the upper intake manifold.
  8. If the upper intake manifold is being replaced, remove the following:
    • Throttle body assembly.
    • Manifold Absolute Pressure (MAP) sensor.
    • Positive Crankcase Ventilation (PCV) valve.
    • Vacuum source manifold.
Upper intake manifold bolt torque sequence (3.8L engine) gm-03-38-530.gif

To Install:
  1. If the manifold was replaced, install or connect the following:
    • Vacuum source manifold.
    • Positive Crankcase Ventilation (PCV) valve.
    • Manifold Absolute Pressure (MAP) sensor.
    • Throttle body assembly.
    • Upper-to-lower intake manifold carrier gasket to the upper intake manifold.
  2. Carefully place the upper intake manifold onto the lower intake manifold. Ensure that the alignment pins in the upper intake manifold align with the holes in the lower intake manifold. NOTE: Apply thread lock compound, to the bolt threads before assembly.
  3. Install or connect the following:
    • Upper intake manifold. Tighten the upper intake manifold bolts in sequence to 89 in lbs (10 Nm)
    • Accelerator and the cruise control cables with the bracket to the throttle body.
    • EVAP purge solenoid vacuum line to the throttle body.
  4. Connect the electrical connectors to the following:
    • Mass Air Flow (MAF) sensor
    • Manifold Absolute Pressure (MAP) sensor
    • Idle Air Control (IAC) valve
    • Throttle Position (T/P) sensor
    • EVAP purge solenoid
  5. Install or connect the following:
    • Throttle body upper support bracket bolt. Tighten the bolt to 89 in lbs (10 Nm)
    • EGR valve wiring harness heat shield, nut and the bolt. Tighten the nut and the bolt to 89 in lbs (10 Nm)
    • Brake booster hose to the vacuum source manifold.
    • Fuel rail assembly.
    • Right spark plug wires.
    • Air cleaner intake duct.
    • Fuel injector sight shield.
  6. Connect the negative battery cable.
  7. Fill the cooling system.
  8. Inspect for fluid or vacuum leaks.
Lower Intake Manifold (W/O Supercharger) To Remove:
  1. Remove or disconnect the following:
    • Upper intake manifold.
    • Generator brace.
    • Drive belt tensioner with the mounting bracket and the heater water bypass inlet pipe.
    • Exhaust gas recirculation EGR outlet pipe bolt from the lower intake manifold.
    • Radiator inlet hose from the water outlet housing.
    • ECT sensor electrical connector.
    • Right upper engine mount strut bracket.
    • Generator brace bracket bolts.
    • Generator brace bracket.
    • Lower intake manifold bolts.
    • Lower intake manifold.
    • Lower intake manifold seals.
    • Lower intake manifold gaskets.
  2. If replacing the lower intake manifold, Remove or disconnect:
    • Water outlet housing bolt and stud
    • Water outlet housing
    • Gasket and the thermostat.
    • ECT sensor.
  3. Inspect the flatness of inlet flanges.
  4. Clean the intake manifold mating surfaces.
  5. Clean the intake manifold bolts and bolt holes of adhesive compound.
To Install:
  1. If removed, install the ECT sensor.
    • Tighten the ECT sensor to 18 ft. lbs. (25 Nm)
  2. If removed, install the thermostat, the gasket, and the water outlet housing.
  3. If removed, install the water outlet housing bolt and the stud.
    • Tighten the bolt and stud to 20 ft. lbs. (27 Nm)
  4. Install or connect the following:
    • Lower intake manifold gaskets. NOTE: Apply sealer GM P/N 12346286 (Canadian P/N 10953472) or equivalent to the ends of the intake manifold seals.
    • Lower intake manifold seals.
    • Lower intake manifold.
    • Lower intake manifold bolts.
    NOTE: Apply thread lock compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the two hidden bolts and ensure they are installed.
  5. Tighten the lower intake manifold bolts in sequence to 11 ft. lbs. (15 Nm) gmpc_v6_5.gif

  6. Install or connect the following:
    • Generator brace bracket.
    • Generator brace bracket bolts. Tighten the bolts to 37 ft. lbs. (50 Nm)
    • Right upper engine mount strut bracket.
    • ECT sensor electrical connector.
    • Radiator inlet hose to the water outlet housing.
    • EGR outlet pipe to the lower intake manifold.
    • EGR outlet pipe bolt to the lower intake manifold. Tighten the bolt to 21 ft. lbs. (29 Nm)
    • Drive belt tensioner.
    • Generator brace.
    • Upper intake manifold.
  7. Inspect for leaks.
Lower Intake Manifold (W/ Supercharger) To Remove:
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Remove the supercharger.
  4. Remove the thermostat housing.
  5. Remove the EGR pipe at the intake manifold.
  6. Disconnect the electrical connection at the temperature sensor.
  7. Remove the intake manifold and gaskets.
NOTE: The coolant bypass tube will release from the intake manifold when the manifold is removed.
To Install:
  1. Clean the gasket sealing surfaces.
  2. Install the intake manifold gaskets.
  3. Align the coolant bypass tube with the opening in the intake manifold and install the manifold. Tighten the bolts to 11 lb ft (15 Nm).
  4. Install the electrical connector to the temperature sensor.
  5. Install the EGR pipe to the intake manifold.
  6. Install the thermostat housing.
  7. Install the supercharger.
  8. Fill the cooling system.
  9. Connect the negative battery cable.

Aug 05, 2010 | 1997 Pontiac Grand Prix

1 Answer

Need to replace intake manifold how do you do this


Bonneville, LeSabre, Park Avenue 2000-2005 Intake Manifold - Removal & Installation

3.8L Engine
VIN 1 Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Relieve the fuel system pressure.
  3. Drain the cooling system.
  4. Remove or disconnect the following:
    Negative battery cable Supercharger Thermostat housing Exhaust Gas Recirculation (EGR) tube at the intake manifold Engine Control Temperature (ECT) sensor Intake manifold
To install:
  1. Install or connect the following:
    Intake manifold with new gaskets. Torque the bolts, working from the center out, to 11 ft. lbs. (15 Nm). ECT sensor connector EGR tube to the intake manifold Thermostat housing Supercharger Negative battery cable
  2. Refill and bleed the cooling system.
  3. Run the engine and check for leaks and proper engine operation.

VIN K Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system.
  4. Relieve the fuel system pressure.
  5. Remove or disconnect the following:
    Fuel injector sight shield Air inlet duct Spark plug wires from the right side Manifold Absolute Pressure (MAP) sensor Vacuum lines from the intake manifold Fuel lines Fuel injector electrical connectors Fuel regulator vacuum line Fuel rail from the intake manifold Exhaust Gas Recirculation (EGR) heat shield Throttle cable bracket from the cylinder head mounting bracket and the throttle body cables Throttle body support bracket Upper intake plenum and gasket Thermostat housing Electrical connector from the Engine Coolant Temperature (ECT) sensor Drive belt tensioner assembly EGR valve outlet pipe Lower intake manifold

    a5adffa.jpg
    Fig. Exploded view of the intake manifold and related components-3.8L (VIN K) engine
To install:


140d431.jpg
Fig. Upper intake manifold torque sequence-3.8L (VIN K) engine


4950e4f.jpg
Fig. Lower intake manifold torque sequence-3.8L (VIN K) engine
  1. Install or connect the following:
    Intake manifold using new manifold gaskets. Torque the bolts in sequence to 11 ft. lbs. (15 Nm); then, re-torque to 11 ft. lbs. (15 Nm). EGR valve outlet pipe Drive belt tensioner assembly. Torque the tensioner bolts to 37 ft. lbs. (50 Nm). Electrical connector to the ECT sensor Thermostat housing Upper intake plenum. Torque the intake plenum bolts to 88 inch. lbs. (10 Nm). Throttle body support bracket Throttle cable bracket to the cylinder head mounting bracket and the cables to the throttle body lever EGR heat shield Fuel rail. Torque the fuel rail bolts to 88 inch. lbs. (10 Nm). Fuel lines Fuel regulator vacuum line Fuel injector electrical connectors Vacuum lines to the intake manifold MAP sensor Spark plug wires Fuel injector sight shield and air inlet duct Negative battery cable
  2. Refill and bleed the cooling system.
  3. Run the engine and check for leaks and proper engine operation.

Hope this help (remember rated this).

May 17, 2010 | 2001 Pontiac Bonneville

1 Answer

1994 Sonoma just threw a code 32 EGR Valve do you have a diagram of the motor or can you tell me where it is located?


Your EGR valve is located behind your throttle body and injectors, and it is attached to the intake manifold. It has two bolts on opposite sides of the valve and a vacuum line running out of it. Disconnect the vacuum line, remove the two bolts, and pull off the EGR valve. The EGR's on these trucks tend to get clogged up with carbon and stick. Take some carb and choke cleaner, and a small pick or very small flat head screw driver and break up the carbon inside of the valve. Be careful not to puncture the rubber diaphragm or you EGR will be no good after you get done cleaning it. Once you get all of the carbon deposits out of the EGR, assuming you buy a new gasket for it, put the gasket between the valve and intake manifold, tighten screws, and plug the vacuum line back in. This should solve your problem!

Dec 02, 2008 | 1994 GMC Sonoma

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