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How do i connection of throttle body suction hose, there is 4 hose pipe is coming from throttle body 2 is idle and 2 is accelerator so what is the connection of these hose pipe, please explain i don't know which pipe should be fix where ?

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Engine revs up by itself & then down so low it dies. 86 ford taurus v4 manual


Sound like an airflow issue. But not sure if that car has a mass air flow sensor. Clean intake with carb cleaner or seafoam. I use seafoam for these issues. on throttle body unplug largest hose that has suction when running pour very slowly 6 oz seafoam into funnel connected with hose then shut car off let sit 15-30 minutes then in an open area run the car for 10 minutes revving engine to clean out the carbon. Then drive high acceleration 55+ for 10-20 miles or until smoke clears from tail pipe.

Feb 27, 2014 | 1986 Ford Taurus

1 Answer

Thermostat on a saab


4 Cylinder Thermostat Removal


1. Drain the coolant by opening the drain cock or removing the lower radiator hose. Remove the lid to speed up process

2. Remove the throttle body cover on turbo cars

3. Remove the bypass hose and the pressure pipe between the Intercooler and the throttle body on turbo cars

4. Rempve the screw that holds the coolant pipe to the water pump

5. Remove the screw that holds the coolant pipe in the front left of the engine

6. Remove the hose to the throttle body pre-heater

7. Remove the thermostat housing and remove the thermostat

8. Refit in Reverse

Feb 07, 2014 | 1997 Saab 900

1 Answer

High idle, after driving a bit when stop idle lopes then high


It is usually caused by the air leakage in the intake manifold. Check the following:
1. Check all the vacuum hoses from around the throttle body.
2. Under the throttle body there are three rubber hoses. Two pipes are of the same size and are used for the coolant circulation through the idle air control valve and the third one is a bit thicker than the two. It is used as the air release tube for the idle air control valve, (if the valve is separate from the throttle body). If the idle air control valve is separate type, it is attached to the side of the surge tank, other wise it is fixed to under the throttle body with Philips type screws (4 mm) as a single unit.
3. To locate the intake air leaking source, take a vacant mineral water bottle, fill it with tap water, make a small hole on the cap with a bag sewing needle, invert it and spray water by pressing the bottle with little pressure and pointing it towards a suspected area. If there is any air leaking from around the intake manifold it will produce an audible suction noise. Locate the area and fix it.
4. Remove the idle air control valve, clean and free it up and install it back.

Dec 10, 2013 | 1991 Toyota Corolla

2 Answers

My Toyota Quantum 2.7GL idles but does not rev up. i ve changed the fuel pump and filter but still it starts, idles but does not rev up when you press the accelerator?


We do not have this model in US, but I assume it is a new model 2016-17. You throttle (and the "rev" ) is controlled by the computer. The fact that your car is idles - should mean that your computer is fine! There are two types of idle control: 1st- when you have a bypass of the throttle, which lets the throttle flop stay close while idling and let's the air into the motor through a bypass and electronically controlled idle switch. Inspect your throttle - the electronic/metal unit located on the large pipe through which the air gets into the motor: if you have a "bypass" for the air then you need to inspect your throttle body as it could be your problem.
2. most likely you do not have a bypass and your idle is controlled by your throttle body, then it is sure working fine and your only issue is that your engine computer does not know that you press the accelerator. Your gas pedal has an electrical unit on it which connects to the engine computer- inspect the connector/wires if all looks fine most likely your accelerator sensor does not work- you need to change the gas pedal unit ( I think it called accelerator sensor).
Good luck.

Jan 05, 2013 | 2007 Toyota Quantum 2.7

1 Answer

Engine vibrates in idle real bad


sound like idle speed low idle you need to remove throttle body clean entire throttle body spray cleaner down throttle body bore if cleaning throttle body dont help the dealership has to check it out.a faulty egr valve could be stuck partially open that will cause rough idle and stalling. replace air filter clean fuel injectors.your fuel system could be too lean caused by clogged fuel injectors or weak fuel pump check fuel pressure and also check all intake vacuum hoses make sure pcv valve working should have suction and make sure its in place and the pcv valve hose not cracked open or damaged.

Nov 16, 2011 | 1994 Chrysler Concorde

1 Answer

Engine diagram 1997 buick skylark/thermostat


follow the water inlet pipe to water pump the thermostat housing connects to water pump this is for 2.4l engine you have to remove exhaust manifold heat shield.you will see the water inlet pipe going to water pump inlet thermostat housing.for the 3.1 engine follow top radiator hose to thermostat housing you have to remove air filter air duct and filter housing , you have to remove throttle body unit with coolant hoses, you have to disconnect accelerator cable, transmission down shift cables at the bracket bolts to throttle body.once you remove throttle body unit then you can see and remove the thermostat housing to replace thermostat.you need to buy new throttle body gasket,and new small coolant hoses connects to the throttle body unit.have extra gallon antifreeze dexcool on hand.

Nov 15, 2011 | Cars & Trucks

2 Answers

Cylinderhead torque stc.


Cylinder Head Removal & Installation SOHC To Remove:
  1. Relieve fuel system pressure.
  2. Remove timing belt cover. Camshaft timing marks kia-03-20-7032.gif

  3. Turn crankshaft until timing mark on front housing and the arrow "2" on the camshaft pulley align.
  4. Loosen lock bolt on tensioner.
  5. Pry tensioner away from timing belt and tighten lock bolt to relieve tension on the timing belt.
  6. Remove timing belt from camshaft pulley.
  7. Disconnect battery negative cable.
  8. Remove 3 bolts that secure accelerator cable and air intake hose to cylinder head cover.
  9. Detach accelerator cable and place off to side.
  10. Remove the following;
    • Air hose
    • Air ISC air hose
    • Breather hose
    • Vacuum hose from air intake hose
  11. Disconnect mass air flow sensor electrical connector.
  12. Remove air intake hose.
  13. Remove PCV valve from cylinder head cover.
  14. Remove ISC air hose from idle speed actuator.
  15. Remove air hose from behind intake manifold.
  16. Remove 2 screws from high tension wire protectors.
  17. Detach wire loom from holder at rear of cylinder head cover.
  18. Detach vacuum tube at rear of cylinder head cover.
  19. Remove vacuum pipe. Cylinder Head Cover kia-03-20-7042.gif

  20. Remove 7 cylinder head cover bolts.
  21. Remove cylinder head cover and gasket.
  22. Disconnect 2 ignition coil electrical connectors.
  23. Disconnect 2 fuel injection electrical connectors at rear of cylinder head.
  24. Disconnect the following electrical connectors;
    • Oxygen sensor
    • Throttle position sensor
    • Idle speed actuator
    • Oil pressure switch
    • EGR vacuum solenoid valve at intake manifold
  25. Disconnect heater hose from elbow.
  26. Disconnect brake booster vacuum hose and cruise control vacuum hose from surge tank.
  27. Detach wire harness from rear of cylinder head.
  28. Disconnect purge control solenoid vacuum hose from intake manifold.
  29. Disconnect fuel hose from fuel connector assembly.
  30. Remove grounding bracket.
  31. Remove 4 bolts and intake manifold bracket.
  32. Remove starter.
  33. Detach water bypass hose from bypass pipe.
  34. Disconnect water hoses from oil cooler.
  35. Disconnect fuel hose from fuel pipe.
  36. Remove exhaust manifold heat shield.
  37. Remove exhaust flange nuts and front exhaust bracket bolt.
  38. Lower exhaust system. Cylinder head bolt loosening sequence kia-03-20-7050.gif

  39. Loosen cylinder head bolts in 3 steps in proper sequence.
  40. Remove cylinder head bolts and washers.
  41. Remove cylinder head, intake manifold and exhaust manifold as an assembly.
To Install:
  1. Install NEW cylinder head gasket.
  2. Install cylinder head, intake manifold and exhaust manifold as an assembly.
  3. Tighten cylinder head bolts in 3 steps in reverse sequence that was used during removal. Tighten bolts to 62 ft lb (84 Nm).
  4. Install front exhaust bracket bolt. Tighten bolt to 20 ft lb (27 Nm).
  5. Install NEW lower exhaust flange gasket and 3 nuts. Tighten nuts to 24 ft lb (31 Nm).
  6. Install exhaust manifold heat shield. Tighten nuts to 35 in lb (4 Nm).
  7. Connect fuel hose to pipe.
  8. Connect 2 hoses to oil cooler.
  9. Attach water bypass hose to bypass pipe.
  10. Install starter and bolts. Tighten bolts to 34 ft lb (46 Nm).
  11. Install intake manifolds bracket and 4 bolts. Tighten bolts to 32 ft lb (45 Nm).
  12. Install grounding bracket.
  13. Connect fuel hose to fuel connector assembly.
  14. Connect the following electrical connectors;
    • Oxygen sensor
    • Throttle position sensor
    • Idle speed actuator
    • Oil pressure switch
    • EGR vacuum solenoid valve at intake manifold
  15. Connect purge control solenoid vacuum hose to intake manifold.
  16. Attach wire harness from rear of cylinder head.
  17. Connect brake booster vacuum hose and cruise control vacuum hose to surge tank.
  18. Connect heater hose to elbow.
  19. Connect 2 fuel injection electrical connectors at rear of cylinder head.
  20. Connect 2 ignition coil electrical connectors.
  21. Install cylinder head cover.
  22. Install 7 cylinder head cover bolts. Tighten bolts to 60 in lb (7 Nm).
  23. Install vacuum pipe and 2 bolts at rear of cylinder head cover. Tighten bolts to 60 in lb (7 Nm).
  24. Connect vacuum tube to pipe.
  25. Connect loom holder to rear of cylinder head cover.
  26. Install 2 screws to high tension wire protectors.
  27. Install air hose to behind intake manifold.
  28. Install ISC air hose to idle speed actuator.
  29. Install PCV valve to cylinder head cover.
  30. Install air intake hose.
  31. Connect mass air flow sensor electrical connector.
  32. Install the following;
    • Air hose
    • Air ISC air hose
    • Breather hose
    • Vacuum hose from air intake hose
  33. Attach accelerator cable.
  34. Install 3 bolts that secure accelerator cable and air intake hose to cylinder head cover. Timing belt pulley timing marks kia-03-20-7035.gif

    NOTE: Timing belt pulley timing mark and timing mark must be aligned.
    Camshaft timing marks kia-03-20-7032.gif

    NOTE: The arrow at "2" on camshaft pulley must be aligned with timing mark on front housing.
  35. Install timing belt.
  36. Install timing belt cover.
  37. Pressurize fuel system.
  38. Start engine and check ignition timing.

Jul 11, 2010 | 1999 Kia Sportage

1 Answer

How do i chage the fuel injector for a geo metro 1997 LSI?


REMOVAL & INSTALLATION Fig. 1: Removing injectors from fuel rail 84245032.gif
Fig. 2: Make sure injectors rotate freely in cylinder head 84245033.gif
  1. Relieve fuel system pressure and disconnect the negative battery cable.
  2. Remove intake air hose between throttle body and intercooler.
  3. Remove accelerator cable.
  4. Unclamp PCV and fuel return hoses from deliver pipe.
  5. Unclamp injector wiring harness.
  6. Disconnect injector coupler.
  7. Remove cold start injector pipe from delivery pipe.
  8. Remove vacuum hose from pressure regulator.
  9. Remove fuel feed hose from delivery pipe.
  10. Remove pressure regulator from delivery pipe.
  11. Remove delivery pipe with injectors.
  12. Remove injectors from delivery pipe. To install:
  13. Replace injector O-rings and lubricate with fuel. NOTE: Make sure injectors rotate smoothly. If not, probable cause is incorrect installation of O-ring.
  14. Check if insulator is scored or damaged. If it is, replace with new one.
  15. Connect delivery pipe with injectors.
  16. Install pressure regulator to delivery pipe using a new O-ring.
  17. Install fuel feed hose to delivery pipe.
  18. Install vacuum and fuel return hoses to pressure regulator and clamp securely.
  19. Install cold start injector pipe to delivery pipe using new gaskets.
  20. Install injector coupler. Clamp injector wiring harness.
  21. Install PCV hose to cylinder head.
  22. Install throttle position sensor coupler.
  23. Install accelerator cable and adjust free-play.
  24. Install intake air hose to throttle body and intercooler.
  25. Connect the negative battery cable.
  26. Start engine and check for leaks.
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Jul 03, 2010 | 1997 Geo Metro

2 Answers

How can i get to the thermostat housing on my 1999 Buick Century


drain the coolant
remove the 2 connectors on the air duct
remove the air inlet duct from the throttle body to the air box
disconnect the throttle cable and cruise control cable
remove the throttle cable bracket one 10mm nut at the bottom of the throttle body and 2-10mm bolts on top of the throttle body
MOVE A SIDE YOU DO NOT HAVE TO REMOVE THE CABLES FROM THE BRACKET
ok there is a coolant pipe runs across the front valve cover
remove the the hose that will go under the upper intake
then remove the 8mm bolt holding the coolant pipe
then back at the throttle body there are 2 small hoses side the clamps up the you will see a brace on the coolant pipe bolts to the throttle body with a 13mm nut remove that nut
ok now the 2 small hoses will be stuck to the pipe use a SLIDE A SMALL SCREW DRIVER BETWEEN THE HOSES AND THE COOLANT PIPE BE CAREFULL NOT TO CUT THE HOSE
now lift the coolant pipe up at the front of the engine IT HASE AN O RING SEAL
then slide the coolant pipe back at the throttle body back to remove the hoses from the coolant pipe
remove the TPS,IAC and EVAP connectors
then remove the 2 thottle body bolts 13mm
remove the throttle body
you may have to TAP THE THROTTLE BODY WITH A SCREW DRIVE HANDLE TO RELEASE
check the gasket make sure it didn't TEAR or REPLACE IT
now remove the hose to the thermostat housing
there are 2 -13mm bolts the top bolt take it out
the bottom bolt remove 90% the bottom bolt hole is slotted
remove the thermostat housing
REV. porcedure to reassemble
then after you have reassembled
OPEN BOTH BLEED SCREWS THEY ARE 7mm BOLTS one on the thermostat housing and the other one is on the coolant pipe
fill the cooling system till you have a STREAM OF COOLANT COMING OUT OF THE BLEEDERS now CLOSE THE BLEEDER SCREWS
top up coolant in rad and install the cap top up the over flow bottle
start the vehicle up and select VENT,HIGH HEAT BLOWER TO HIGH
let vehicle run untill you have GOOD HEAT COMING OUT OF THE VENTS HOT! NOT JUST WARM
this will insure you have no air locks in the cooling system
good luck and i hope this was helpfull


Dec 19, 2009 | 2001 Buick Century

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