piston firing order

Asked by Apr 21, 2016 at 08:32 AM about the 2005 Chrysler 300

Question type: Maintenance & Repair

2 Answers

1,630

hopefully this helps

1,630

The firing order of an engine is the sequence the spark plugs fire. On engines with a distributor, the firing order is determined by the routing of the spark plug wires from the distributor cap to the spark plugs in each cylinder. When the piston is at top dead center (TDC) on the compression stroke, the rotor inside the distributor should be aligned with the number one (#1) spark plug terminal in the distributor cap. Most (but not all) Ford distributors rotate in a counter-clockwise direction, so the next plug wire in the cap would go to the next spark plug in the firing sequence for that engine. On most Chrysler engines the #1 cylinder is the first cylinder at the front of the engine on the driver side (left side) of a rear-wheel drive car or truck. On front-wheel drive cars and minivans with 2.7L and 3.5L V6 engines, the #1 cylinder is the first cylinder on the front RIGHT side of the engine. On trucks with the 3.9L V6, #1 cylinder is the first cylinder at the front LEFT of the engine. The cylinders are numbered in a staggered sequence, with all the odd numbers on one side and the even numbers on the other side. The correct firing order is very important because mixing up the spark plug wires may prevent the engine from starting, cause it to backfire and run very poorly if at all. On engines with distributorless ignition systems or coil-on-plug ignition systems, the firing order is controlled by the ignition module or engine computer. The computer receives an input signal from the crankshaft position sensor (and camshaft position sensor on some engines) to determine which piston is coming up to top dead center on its compression stroke. It then fires that spark plug, and the next and so on in the firing sequence.

Your Answer

Chrysler 300 Experts

  • #1
    Jetlounge
    Reputation
    1,830
  • #2
    Eddie_G1
    Reputation
    900
  • #3
    Whatisit
    Reputation
    830
View All

Related Models For Sale

Used Dodge Charger
470 Great Deals out of 27,625 listings starting at $1,650
Used Ford Mustang
760 Great Deals out of 42,755 listings starting at $1,300
Used Chevrolet Impala
591 Great Deals out of 34,660 listings starting at $1,000
Used Jeep Grand Cherokee
923 Great Deals out of 70,927 listings starting at $995
Used Cadillac CTS
260 Great Deals out of 10,324 listings starting at $1,500
Used Honda Accord
1,023 Great Deals out of 62,741 listings starting at $999
Used Chevrolet Silverado 1500
2,153 Great Deals out of 183,299 listings starting at $1,693
Used Ford F-150
2,234 Great Deals out of 181,368 listings starting at $1,500
Used Nissan Maxima
329 Great Deals out of 23,747 listings starting at $1,750
Used Chevrolet Tahoe
625 Great Deals out of 36,241 listings starting at $1,800
Used Chevrolet Malibu
1,236 Great Deals out of 78,091 listings starting at $1,500
Used BMW 3 Series
1,047 Great Deals out of 31,561 listings starting at $1,000

Used Cars For Sale

2017 Chrysler 300 For Sale
9 Great Deals out of 4,322 listings starting at $21,999
2016 Chrysler 300 For Sale
73 Great Deals out of 2,151 listings starting at $14,985
2015 Chrysler 300 For Sale
40 Great Deals out of 1,281 listings starting at $13,880
2014 Chrysler 300 For Sale
44 Great Deals out of 1,681 listings starting at $7,995
2013 Chrysler 300 For Sale
36 Great Deals out of 1,097 listings starting at $7,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.