Question about 1995 Chevrolet Astro

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97 Chevy Astro van lugs, like it misses, B4 finally cranking on

97 Chevrolet Astro van 2wd. When I start it, it acts like the battery is almost dead- lugging, sluggish, missing kinda sound and feel.

But the battery cranks pretty long until it starts. I replaced the timing chain. Do I need cam and crank position sensors, or cap & rotor?

I had a buddy check a constant-on 'check engine' light with OBD2 meter. A Diagnostic Trouble Code of p1345 showed up. Are the position sensors easy to change?
Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation

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  • dang2it Mar 09, 2009

    Yes, mechanic checked too. Dots aligned vertically with shaft.

    Thanks carhob!

  • dang2it Mar 14, 2009

    Thanks carhob, I replaced the cam sensor and that wasn't it. It was the distributor out quite a bit. That cleared the engine trouble light and starts clean now.

    Sidenote, I had a DTC trouble code when I checked it without the air filter in. MAF air sensor was ok but p0102 code threw me.

  • carhob May 11, 2010

    are you sure when you installed your timing chain marks on gears were well aligned?


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Crank shaft sen. is easy enough to change.its mounted near timing chain cover,cam somewhat harder,its in the distributor,id doubt that both are defect

Posted on Mar 10, 2009

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