798646e1

6.1.5. Service of the electromagnetic valve of return of fuel - only models of 3.0 l

Functioning check

 PERFORMANCE ORDER

  1. Disconnect a hose from a tube of return of fuel and lower its end in the prepared capacity. Zakuporte the open end of a tube in order to avoid hit in system of dirt.
  2. Connect a tachometer and ask the assistant to start the engine.
  3. At turns engine over 1 400 in a minute fuel has to follow from a hose weak pushes.
  4. At turns lower than 1 250 in a minute has to take place a weak continuous effluence of fuel in capacity.

Check of a state

 PERFORMANCE ORDER

  1. Disunite the electric socket of the electromagnetic valve of return of fuel and give battery tension on valve plugs. Blow in the end of a hose of return of fuel. Free passability has to take place.
  2. Disconnect tension of the battery from the valve and again blow in a returnable hose. This time passability has to be absent.
  3. If any of the above described conditions is not carried out, replace the valve.

Check of a condition of a contour

All checks are made on the block of turns of the engine located over the assembly block of safety locks. Sounding of contacts has to be made from a reverse side of the electric socket. Body metal acts as weight. The arrangement of plugs is shown on an accompanying illustration.


 

 PERFORMANCE ORDER

  1. By means of an ohmmeter check existence of conductivity between the plug C and weight. Conductivity has to take place.
  2. By means of the voltmeter check presence of tension of the battery on the plug D.
  3. At the included ignition make sure of presence of tension of the battery on the plug B.
  4. Start the engine and gradually lift its turns. Tension on the plug B has to fall slightly.
  5. At turns engine lower than 1 250 in a minute check presence of tension of the battery on the plug A.
  6. At turns over 1 400 a minute of tension on the plug A should not be.
  7. If the above described checks yield positive result, most likely it is necessary to replace the block of turns of the engine.

Removal and installation

Removal

 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. Disunite the electric socket of the electromagnetic valve of return of fuel.
  3. Establish drain capacity under the valve and disconnect fuel hoses.
  4. Give fixing bolts and remove the electromagnetic valve of return of fuel from the car.

Installation

Installation is made upside-down.

 PERFORMANCE ORDER

  1. Before connection check a condition of fuel hoses.
  2. Start the engine and check it for fuel leak.