Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2002 Chrysler Neon (CANADA) L4-2.0LFACTORY OEM SERVICE PROCEDURE

Piston Specifications

Fedral Emission	Piston Diameter	3.4434-3.4452
	Clearance @ 11/16 in from bottom	0.0004-0.0017
	Weight	11.47-11.82
	Land Clearance (Diametrical)	0.029-0.031
	Piston Ring Groove Depth # 1	0.157-0.165
	Piston Ring Groove Depth # 2	0.176-0.184
	Piston Ring Groove Depth # 3	0.151-0.163
	Piston Length	2.520 in.
Low emission Vehicle	Piston Diameter	3.4432-3.4439
	Clearance @ 11/16 in from bottom	0.0008-0.0020
	Weight	11.29-11.60
	Land Clearance (Diametrical)	0.0299-0.0312
	Piston Ring Groove Depth # 1	0.157-0.165
	Piston Ring Groove Depth # 2	0.176-0.184
	Piston Ring Groove Depth # 3	0.151-0.163
	Piston Length	2.197 in.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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