Lap-by-Lap: California (cont'd)

Lap 73 -- Jimmie Johnson's crew is concerned about an ignition issue with the No. 48 car.

Lap 70 -- Kasey Kahne's engine blows up, he takes his No. 9 Dodge to the garage.

Lap 70 -- Dale Earnhardt Jr. has his car pushed to the garage.

Lap 69 -- Dale Earnhardt Jr. is in his pit stall with the hood up.

Lap 67 -- LEAD CHANGE: Tony Stewart passes Matt Kenseth to take the lead.

Lap 66 -- Dale Earnhardt Jr. is reporting engine problems to crew chief Tony Eury Jr.

Lap 60 -- GREEN FLAG: Matt Kenseth brings the field to the green flag.
1. Matt Kenseth
2. Bobby Labonte
3. Tony Stewart
4. Clint Bowyer
5. Jeff Burton

Lap 58 -- Kevin Harvick was caught speeding down pit road, he will move back to the end of the longest line.

Lap 57 -- All the leaders hit pit road.

• Jimmie Johnson takes four tires and fuel
• Jeff Burton takes tires, fuel and makes minor adjustments
• Tony Stewart has a quick four tire stop with adjustments, comes off second
• Kevin Harvick has the quickest stop and will take the lead

Lap 56 -- Kyle Busch will receive the free pass and get back on the lead lap.

Lap 55 -- YELLOW FLAG #4: Sterling Marlin spins and hits the wall on the backstretch.

Lap 54 -- J.J. Yeley and Denny Hamlin are both on pit road for four tires and adjustments. Greg Biffle, David Stremme, Juan Montoya among others also making pit stops.

Lap 53 -- Kurt Busch hits pit road for tires and fuel.

Lap 52 -- LEAD CHANGE: Mark Martin hits pit road, Jimmie Johnson takes the lead.

Lap 51 -- Matt Kenseth, Carl Edwards and Kyle Busch all hit pit road for tires and fuel.

Lap 51 -- LEAD CHANGE: Green flag stops begin when Matt Kenseth hits pit road. Mark Martin takes the lead.

Lap 41 -- Dale Earnhardt Jr. passes leader Matt Kenseth to get back on the lead lap.

Lap 31 -- LEAD CHANGE: Matt Kenseth takes the lead from Kyle Busch after starting in the 25th position.

Lap 23 -- GREEN FLAG: Kyle Busch takes the lead with the leaders pitting and brings the field up to speed.

1. Kyle Busch
2. Denny Hamlin
3. Matt Kenseth
4. Bobby Labonte
5. Mark Martin

Lap 21 -- Leaders come down pit road.

• Clint Bowyer has a fast pit stop, taking tires and fuel
• Tony Stewart took four tires and made a wedge adjustment
• Kevin Harvick and Kasey Kahne also come in for tires and adjustments

Lap 20 -- YELLOW FLAG #3: David Ragan spins in Turn 2 bringing out the caution. Dale Earnhardt Jr. falls a lap down due to being in the pits when the yellow came out. (Continued)