96 tahoe start problem

[xmugsyx]

ok my 96 hoe has a bad start problem. i changed the fuelfilter checked the spark. changed the aci . fuel pressure is 42 lbs with the just the key on 54-52 at idel and when i rev it jumps about 60. i have to crank it for a good 5 mins and to get it to start and even then it seems like it dont want to its rough but when it starts it runs perfect i left the fuel pressure gauge on over night and its not droping i filled it with hightest and dry gas thinking i might have water in the fuel and i have no dumby lights on any one help me with this ideas?

 

[Dpsthomas]

Sounds like it could be your passlock system. A common Tahoe problem.

 

[xmugsyx]

whats the passlock system ?

 

[SunlitComet]

No pass-lock on the 96. Do you have any other anomalies. that may seem unrelated. When it finally start or during do you notice any unusual exhaust color?

Pass-lock is a factory security system.

 

[blizz]

mine is doing the same thing....i'll be following this one. i was thinking maybe it was the fuel pump. i'll swap out the filter this weekend and see what happens.

 

[Dpsthomas]

Sorry. I didn't catch the year model. Be glad you don't have passlock.

Did this just begin doing this out of nowhere or has it gotten progressively worse?

 

[gpracer1]

So you are saying you have fuel pressure the entire time you are cranking?

Possibly:
Bad fuel
Weak battery / starter / slow cranking speed
Weak spark
Flooded with fuel
Low compression

I would pull a plug or two and see if they are wet.

 

[Tahoe_96]

I know this thread is old but I just started having a similar problem and was wondering if this issue was resolved

 

[blizz]

Mine was. It was indeed the fuel pump.