NO START

[bcrgo09]

so i have a 99 tahoe with 5.7 vortec. it slowly started to take longer to start up. untill now were it will crank and crank and not start. ive replaced the folowing starter,coil,ignition control module, crank sensor and the distributor pick up coil. ive tested for spark and fuel and its all where it should be.
so im begining to think it as jumped a few teeth in timing due to strecthed timing chain. and opinions or input will help

 

[Jounier11]

yea i would start with checking that timing bro if not make sure your fuel pressure is up to speed like it should be might wanna even try pouring some gas in the TB(Throttle Body) sounds nuts but it wont damage your truck at all just be careful for fire remember your using fuel so... GoodLuck Ohh and ofcourse :welcome:

 

[lesterl]

Unplug the pigtail on the MAF sensor, crank.

Like J said try having someone crank and someone squirt some fuel (gas or carb cleaner) into the intake.

What was the fuel pressure reading at KOEO? KOEC?

 

[samotahoe]

check battery voltage? could almost be dead but not all the way.

do you have factory intake? check the filter, clogged?

check for codes, and make sure that the engine sounds like its getting compression while cranking. or in rare cases, cat could be clogged.

 

[Tahoebuzz]

might want to check the positioning of where u installed that crank shaft sensor, and make sure its where it needs to be. Is your check engine light on? is it throwing any codes?
Maybe spray some MAF sensor cleaner on the MAF sensor located on the hose of your air filter

 

[samotahoe]

any update?