Help i need to know the spark plug firing order for a 1988 chevy cheyenne, 4.3 liter, v-6. we must have changed the wires wrong and the truck won't start.
88 chevy cheyenne i can get the engine to turn over but it wont fire off and start. ive changed the plugs and bought MSD wires but need the cap order and plock order88 chevy cheyenne i can get the engine to turn over but it wont fire off and start. ive changed the plugs and bought MSD wires but need the cap order and plock order
You can't post conmments that contain an email address.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
FIRING ORDERS NOTE: To avoid confusion, remove and tag the spark plug wires one at a time, for replacement.
If a distributor is not keyed for installation with only one orientation, it could have been removed previously and rewired. The resultant wiring would hold the correct firing order, but could change the relative placement of the plug towers in relation to the engine. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes in your book to reflect how your engine is wired.
Fig. 1: 1988-95 4.3L Engines
Firing Order: 1-6-5-4-3-2
Distributor Rotation: Clockwise
Fig. 2: 1996-98 4.3L Engines
Firing Order: 1-6-5-4-3-2
Distributor Rotation: Clockwise
Fig. 3: 1988-95 5.7L and 7.4L Engines
Firing Order: 1-8-4-3-6-5-7-2
Distributor Rotation: Clockwise
Fig. 3: 1996-98 5.7L and 7.4L Engines
Firing Order: 1-8-4-3-6-5-7-2
Distributor Rotation: Clockwise
4.3 v/6 firing order for an S-10 Chevy is 1-6-5-4-3-2, a helpful tip to always locate # 1 spark plug on a v engine.
If you look carefully at the cylinder heads note the very front of each, do you see one sticks out slightly further to the front then the other?
Tghis is the way these engines have to be cast for proper cylinder and timing rotation.
The furthest forward cylinder head is in fact the home of #1 cylinder, it is the first spark plug on that head, which in this case is the right side head.
My sincere apologies for the delayed response. I am personally going back to answer your unanswered questions. I have only been a free contributor to this site for the past 4-months.
I do not know if you still need this information, but I am going ahead and answering it anyway.
The Dodge 3.9L (238 cubic inch) Engine from 1988 thru 1996 is the same:
Firing Order: 1-6-5-4-3-2
Cylinders: (back of engine) 6........5 4........3 2........1 (front of engine)
1991-1994 2.9L and 3.0L Engines Firing Order 1-4-2-5-3-6
1995 And Later 3.0L V-6 With DIS Ignition System Firing Order 1-4-2-5-3-6
4.0L Engines Firing Order: 1-4-2-5-3-6 DIS Ignition System
88 chevy cheyenne i can get the engine to turn over but it wont fire off and start. ive changed the plugs and bought MSD wires but need the cap order and plock order
×