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Old 04-15-2017, 04:35 AM
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02 liberty

hi there, i have an 02 liberty with the 3.7 and replaced both head gaskets and cam sensor and the engine turns over slow it seems and wont fire. Please I need some advice

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Old 04-15-2017, 05:28 AM
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Did you keep the cam caps in order?
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Old 04-16-2017, 06:20 PM
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02 liberty

Yes but i have found that the guide pin on right side cam to sprocket gear was rounded on one sied and spun independent from cam
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Old 04-16-2017, 07:01 PM
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Then you may/probably have some bent valves
Chances are the timing (Cam/crank) was not correct. OOPS
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Old 04-16-2017, 07:03 PM
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Pull the cams so the valves are closed and do a leakdown test. Reason to pull both,and remove timing chains is because he crankshaft will rotate when you charge the cylinder.

If you are careful enough not to apply to much pressure (leakdown tester) you can just pull cam on one side as low pressure wont turn the crank over.A cylinder with bent valves will leak pressure so the crank wont spin, but when you get to a good set of valves, it might , unless you are careful and use the proper tool.(leakdown gauge/tester)
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Old 04-16-2017, 07:13 PM
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Did you disconnect an electrical ground strap that you forgot to re-connect?
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Old 04-16-2017, 07:24 PM
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Originally Posted by techinspector1 View Post
Did you disconnect an electrical ground strap that you forgot to re-connect?
That too..........
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