piston firing order

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

Question type: Maintenance & Repair

2 Answers

1,370

hopefully this helps

1,370

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

Add photo

Related Questions

Search Chrysler 300 Questions

Chrysler 300 Experts

#1 Jetlounge
Jetlounge
Reputation 1,730
#2 Eddie_G1
Eddie_G1
Reputation 870
#3 Whatisit
Whatisit
Reputation 820
View All

Related Models For Sale

Used Dodge Charger
407 Great Deals out of 28,172 listings starting at $1,988
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Impala
521 Great Deals out of 31,725 listings starting at $1,450
Used Jeep Grand Cherokee
1,027 Great Deals out of 74,887 listings starting at $750
Used Cadillac CTS
200 Great Deals out of 10,812 listings starting at $1,795
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Nissan Maxima
306 Great Deals out of 25,213 listings starting at $999
Used Ford F-150
2,194 Great Deals out of 206,316 listings starting at $1,499
Used Chevrolet Tahoe
550 Great Deals out of 29,235 listings starting at $1,699
Used BMW 3 Series
974 Great Deals out of 31,729 listings starting at $1,000
Used Chevrolet Silverado 1500
1,718 Great Deals out of 175,751 listings starting at $1,250
Used Chevrolet Malibu
950 Great Deals out of 79,654 listings starting at $1,500

Used Cars For Sale

2017 Chrysler 300 For Sale
5,263 listings starting at $21,947
2016 Chrysler 300 For Sale
126 Great Deals out of 3,939 listings starting at $15,979
2015 Chrysler 300 For Sale
39 Great Deals out of 1,390 listings starting at $13,750
2014 Chrysler 300 For Sale
67 Great Deals out of 2,382 listings starting at $6,900
2013 Chrysler 300 For Sale
25 Great Deals out of 1,162 listings starting at $8,900

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.