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No spark from the distributor in the sr18 engine

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  • Cars & Trucks Master
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Could be any number of things: ECM fuse blown, camshaft/crankshaft sensor bad, low power on battery, bad coil/coil pack. I would really help if you put the year and make of the vehicle, I don't know what an sr18 is.

Posted on May 14, 2014

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How to replace a distributor


disconnect the cable from the negative battry terminal. position the engine with number one cylinder at TDC on the compression stroke this mean you can take number one spark plug out with the engine cool place your thumb over the spark hole and have some one turn the engine over and and feel the presure by your thumb when you feel pressure stop turning engine take the distributor cap and make sure the rotor is pointing to number one spark wire in distributor cap if not you may have to turn the engine a little with your hand apply a paint mark on the edge of the distributor body directly below the rotor tip. also make a mark on the distributor base to the engine to ensure the distributor can be re-installed in exactly the same position as originally installed disconnected the coil wires from the distributor cap electrical connector, spark plug wires from the spark plugs remove the distributor hold-down bolt and pull out the distributor.

Jun 04, 2014 | 1995 Land Rover Discovery

1 Answer

No spark from the distributor in my sr18 engine


have you checked the low tension wire from dist to coil ? inside dist cap is a rotor arm so check that has a good condition contact in center and end also check the interior dist cap contacts for signs of corrosion etc , dont think this version has points , check the HT leads for fit , condition etc keep me posted if you wish

May 14, 2014 | Cars & Trucks

1 Answer

Wont start no spark


If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark, the problem may be due to any of the following:

A bad pickup inside the distributor (on engines that have a distributor), a stripped distributor drive gear (common problem with plastic distributor drive gears), broken, loose or corroded wires from the pickup to the ignition module orPCM.

A bad crankshaft position (CKP) sensor (on engines that do not have a distributor), or broken, loose or corroded wires from the sensor to the PCM.

A bad ignition module (on engines that have a distributor or use an ignition module separate from the PCM)

A bad ignition coil (on engines that have a distributor and a single coil)

A bad rotor or distributor cap (cracks or carbon tracks that are allowing the spark to short to ground)

Faulty ignition switch.

Mar 14, 2013 | Cars & Trucks

1 Answer

Need firing order on 96 Chevy Silverado and how to place the distributor


Distributor

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Inspect/Replace

To Remove
  • Disconnect the distributor wiring connector and the vacuum advance hose, if the vehicle is so equipped.
  • Remove the distributor cap and note the position of the rotor. Mark the position on the distributor housing.
  • On some vehicles, it may be necessary to remove the spark plug wires from the cap prior to cap removal.
  • Note the position of the vacuum advance, then remove the distributor holddown bolt and clamp.
  • Pull the distributor from the engine. Most distributors will need to be twisted as they are pulled out of their bore.
  • Once the distributor is removed, install a shop towel in the distributor opening to keep foreign material out of the engine block.
  • The entire assembly should be cleaned thoroughly. Make sure all solvent residue is completely removed.
Installing and Timing a Distributor
The following procedure may be followed to install the distributor and time it to the engine, if all reference marks were made during the removal of the distributor:
  • Lubricate the O-ring on the distributor shaft.
  • Position the rotor so that it is aligned with the mark made on the distributor housing prior to removal.
  • Align the distributor housing with the mark made on the engine block during removal.
  • Lower the distributor into the engine block, making sure the distributor drive is fully seated.
  • Distributors equipped with a helical drive gear will rotate at the distributor is being installed, causing the distributor to move away from the reference marks.
  • Pay attention to how much the rotor moves.
  • Remove the distributor and move the rotor backward the same amount. This should allow the shaft to rotate while the distributor is being installed and still be aligned with the reference marks.
  • Make sure the distributor housing is fully seated against the engine block. Sometimes it may be necessary to wiggle or rock the distributor to seat it fully into the drive gear.
  • Distributors with drive lugs must be mated with the drive grooves in the camshaft. Both are offset to eliminate the possibility of installing a distributor 180 degrees out of time.
f22-52.gif The distributor must be aligned with the camshaft drive to seat the distributor in the engine block or cylinder head.
  • Rotate the distributor a small amount so the timer core teeth and pick-up teeth are aligned.
  • Install the distributor holddown clamp and bolt, leaving the bolt slightly loose.
  • Install the spark plug wires in the direction of distributor shaft rotation and in the cylinder firing order.
  • Connect the distributor wiring connectors. The vacuum advance hose is usually left disconnected until the timing is set with the engine running.
If the engine has been cranked while the distributor is removed, or no marks were made during removal, use this procedure to reinstall the distributor:
To be sure that the number one cylinder is on its compression stroke, observe the rocker arms to see that they are both moving. Then, rotate the crankshaft one revolution until the rocker arms for the companion to cylinder number one are both moving at TDC (top dead center). Align the timing mark and install the distributor with its rotor pointing to the number one spark plug cable in the distributor cap.
f22-01.jpg
  • Remove the spark plug from cylinder #1. Install a test plug in the end of the spark plug wire and position the test plug away from you and cylinder #1.
f22-02.jpg
  • Place your thumb over the bore for the spark plug and crank the engine until compression is felt.
f22-03.jpg
  • Lightly crank the engine while observing the timing marks on the crankshaft pulley. Once the timing marks are aligned, stop cranking.
f22-04.jpg
  • Identify the position for the #1 spark plug wire on the distributor cap.
f22-05.jpg
  • Determine which way the distributor shaft will rotate when it is lowered onto the camshaft gear. Then position the rotor so that it will be under the #1 terminal on the distributor cap after the distributor gear is meshed with the camshaft gear.
f22-06.jpg
  • After the distributor is installed in the engine, turn the distributor housing slightly so the pickup coil is aligned with the reluctor.
f22-07.jpg
  • Install the distributor holddown clamp and bolt. Hand tighten the bolt.
f22-08.jpg
  • Connect the pickup leads to the wiring harness.
f22-09.jpg
  • Install the spark plug wires onto the distributor cap according to the engine's firing order. Check to make sure everything that was disconnected before the distributor was removed, is now connected. Connect a timing light and prepare the engine for an ignition timing check and adjustment.

Feb 17, 2013 | Cars & Trucks

1 Answer

Want to remove and replace the distributor in my 1997 gmc


1 Remove the plastic cover from the engine block with a wrench, then let the spark plug wires lead you to the distributor. It's at the back of the engine block.


2 Remove the negative cable from the battery at the side of the engine compartment; carefully pull the spark plug wires off the distributor cap so you don't damage them. Use a screwdriver to take off the coil leads from the distributor and the electrical connector at the bottom of the distributor.


3 Loosen the clamps and take off the distributor cap. Mark the parts to align the rotor position to the distributor housing and the housing to the engine block. This will help replace parts correctly during distributor installation.


4 Unbolt the distributor hold-down bolt with a wrench and remove the distributor from the engine.


5 Install the new Sierra distributor, aligning the marks for proper seating in the engine block. When ordering the distributor, give the parts dealer your model, year and engine size. You can order part number A1841639 from Parts Train for a 4.3L engine.


6 Re-install the distributor hold-down bolt. Replace the distributor cap and put the clamps back on. Attach the electrical connector at the base of the distributor, put on the spark plug wires and coil leads, and hook up the negative battery cable.




Read more: Car OBD2 Diagnostic

Aug 05, 2012 | 1986 Toyota Celica

1 Answer

REMOVE DISTRIBUTOR FOR A 1996 GMC JIMMY


Check this procedure...
  1. Disconnect the negative battery cable.
  2. If necessary, remove the air cleaner.
  3. Tag and remove the spark plug wires and the coil leads from the distributor.
  4. Unplug the electrical connector at the base of the distributor.
  5. Loosen the distributor cap fasteners and remove the cap.
  6. Using a marker, matchmark the rotor-to-housing and housing-to-engine block positions so that they can be matched during installation.
  7. Loosen and remove the distributor hold-down bolt.
  8. Remove the distributor from the engine.

INSTALLATION
Engine Not Disturbed
  1. Install the distributor in the engine making sure that the matchmarks are properly aligned.
  2. Install the hold-down bolt and tighten the bolt to 20 ft. lbs. (27 Nm).
  3. Install the distributor cap and attach the electrical connector at the base of the distributor.
  4. Install the spark plug wires and coil leads.
  5. If removed, install the air cleaner assembly.
  6. Connect the negative battery cable.
Engine Disturbed
(see Figure)
  1. Remove the No. 1 cylinder spark plug. Turn the engine using a socket wrench on the large bolt on the front of the crankshaft pulley. Place a finger near the No. 1 spark plug hole and turn the crankshaft until the piston reaches Top Dead Center (TDC). As the engine approaches TDC, you will feel air being expelled by the No. 1 cylinder. If the position is not being met, turn the engine another full turn (360 degree). Once the engine's position is correct, install the spark plug.
  2. Using a long screwdriver, align the oil pump drive shaft in the engine in the mating drive tab in the distributor.
  3. Install the distributor in the engine.
  4. Install the distributor in the engine making sure that the matchmarks are properly aligned.
  5. Install the hold-down bolt and tighten the bolt to 20 ft. lbs. (27 Nm).
  6. Install the distributor cap and attach the electrical connector at the base of the distributor.
  7. Install the spark plug wires and coil leads.
  8. If removed, install the air cleaner assembly.
  9. Connect the negative battery cable.
zjlimited_765.gif

Fig. : The rotor segment should be aligned with the pointer cast in the distributor base, when the distributor is fully seated



Hope this helps (remember to rating this free asnwer).

Oct 07, 2011 | 1996 GMC Jimmy

1 Answer

I replaced my spark plug wires on my 1996 chevy truck. may have crossed one,need a diagram from the spark plugs to the distributer cap.


Since you didn't state whether it is a V6 or V8, I'll give you both.

V6 -4.3Liter
Firing Order is 1-6-5-4-3-2
Distributor rotor turns Clockwise
Number 1 spark plug tower on distributor cap, faces the front of the engine.

->Drivers side, spark plug order in engine, starting from the Front going back:
1-3-5
->Passenger side, spark plug order in engine,
starting from the Front going back:
2-4-6

If it's Electronic, the distributor cap has a Left side, (Drivers side), and a Right side, (Passenger side)
Starting from the Front, going back on the Left side,
3-1-5
Starting from the Front going back on the Right side,
2-4-6

V8-5.0, 5.7, and 7.4Liter
Firing Order is 1-8-4-3-6-5-7-2
Distributor rotor turns Clockwise
Number 1 spark plug tower on distributor cap,
faces Front, towards the Drivers side.

Electronic distributor cap has two sides. Drivers, (Left), side and Passenger, (Right), side.
Starting from Front going back on Drivers side,
1-7-3-5
Starting from Front going back on Passenger side,
8-2-4-6

Spark plug order in engine, starting from Front going back, Drivers side:
1-3-5-7
Spark plug order in engine, starting from Front going back, Passenger side:
2-4-6-8

Aug 28, 2009 | 1996 Chevrolet K1500

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