00 sierra 5.3L vortec timing marks not lining up. truck ran good Doing preventive maint found slack in timing chain

SOURCE: 2001 chrysler concord 2.7 liter timing set

I have a similar problem. I just replaced the water pump and now the POS wont start. Like it is not getting fuel>

SOURCE: 93 toyota pickup 22 re motor, idles very rough

it is possible.

SOURCE: Where to put the timing marks on a 96' nissan 2.4 liter

the timing chain tensioner is hydraulic and either out of adjustment or defective.  You need to remove the timing chain cover and reset the mechanical correlation between the crankshaft and the camshafts.  also the other ignition time marks are on the crankshaft harmonic balancer and the cam cover.  Do not crank the engine with the timing out of sequence or you'll destroy the engine.

SOURCE: 1995 Jeep Grand Cherokee 4.0l timing chain problems

each gear has a mark on it from the factory that line up with a corrrsponding mark on the engine some times they are hard to find but if you look hard enough you will find them they all must line up there is no margin for error or it will not start like now good luck Lindz

SOURCE: 1999 Ford Expedition 5.4L Timing chain setup

.

1. Remove the engine front cover. For additional information, refer to Engine Front Cover in this section.

1. Remove the crankshaft sensor ring from the crankshaft.

1. Rotate the crankshaft until the timing mark on the RH camshaft sprocket is approximately at the 11 o'clock position and the timing mark on the LH camshaft sprocket is approximately at the 12 o'clock position.

1. Using the special tool, position the crankshaft as shown.
   

1. Install the special tool.

1. NOTE: LH shown; RH similar.
   Remove the two bolts, the timing chain tensioner and tensioner arm.

1. Remove the LH and RH timing chains and the crankshaft sprockets.
   
   • Remove the special tool from the crankshaft.
   • Remove the timing chains from the camshaft sprockets.
   • Remove the right and left timing chains and the crankshaft sprocket from the crankshaft.

1. CAUTION: The bolts are different lengths and must be returned to their original location.
   NOTE: LH shown; RH similar.
   Remove the bolts and the timing chain guides.

1. CAUTION: Timing chain procedures must be followed exactly or damage to valves and pistons will result.
   CAUTION: Do not compress the ratchet assembly. This will damage the ratchet assembly.
   Compress the tensioner plunger, using an edge of a vise.

1. Using a small screwdriver or pick, push back and hold the ratchet mechanism.

1. While holding the ratchet mechanism, push the ratchet arm back into the tensioner housing.

1. Install a paper clip into the hole in the tensioner housing to hold the ratchet assembly and plunger in during installation.

1. Remove the tensioner from the vise.

1. NOTE: There are 61 links in the timing chain.
   If the copper links are not visible, mark two links on one end and one link on the other end, and use as timing marks.

1. Install the timing chain guides.

1. Using the special tool, verify correct crankshaft position.
   • Remove the special tool.

1. NOTE: Crankshaft sprockets are identical. They can only be installed one way. Refer to the following illustration for correct crankshaft sprocket installation.
   If removed, install LH and RH crankshaft sprockets.

1. Install the LH timing chain onto the crankshaft sprocket, aligning the one copper (marked) link on the timing chain with the slot on the crankshaft sprocket.

1. Position the LH timing chain on the camshaft sprocket with the two copper (marked) chain links and the camshaft sprocket timing mark aligned.

1. Position the RH (outer) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.

1. Position the RH timing chain on the camshaft sprocket. Make sure the two copper (marked) links align with the camshaft sprocket timing mark.

1. NOTE: LH shown; RH similar.
   Position the tensioner arms and tensioners, and install the bolts.

1. Remove the tensioner retaining clip.

1. As a post-check, verify correct alignment of all timing marks.

1. Remove the special tool.

1. Position the crankshaft sensor ring on the crankshaft.

1. Install the engine front cover. For additional information, refer to Engine Front Cover in this section.