Tahoe Limited Not Starting Help Please

[J.D.H.]

Alright, I've got a 2000 Tahoe Limited with some serious issues. I was hoping y'all could help me out.



The current problem is this, it cranks but will not start. It's getting spark, and I can hear the fuel pump pumping when I turn the key. In the last six months, I've replaced the following:


Distributor

Crankshaft positioning sensor

Ignition Control Module(twice!)

Ignition Coil


In those last six months, the truck has been less then reliable, and with all these modules and sensors going, I can't help but think something bigger is going(computer?).

The truck has 129,000 on the clock, but we've only owned it since 90,000, so I don't know what its been through prior. As long as I've owned it, in addition to what I listed above, I had to replace the head gasket and have the head milled. After looking back on all this stuff it has gone through, I can't help but wonder if its even worth keeping? Regardless, I need to at least fix it to sell it, does anybody have any ideas on what I can check or replace? Many thanks, in advance.

---Jesse---

 

[992dr]

reread, dont pay attention to me

 

[AtomicHoe094]

you can sell it to me if you live close enough

Even though you can hear the pump going, is it louder than usual?

 

[Ski]

I will buy it 2 let me know

 

[Mac]

Camshaft sensor or.......my guess your ECU is dying or it's dead..

 

[SunlitComet]

Did you replace all these items yourself and did you use a scanner to realign the camshaft and crankshaft sensors? And did you have the CASE relearn done on the vehicle after you replaced your crank sensor? If not you are going to have drivability issue from the beginning. And if possible can you get a scanner and a fuel pressure tester for some simple diagnostics? One other thing make sure your Electronics grounds are in place on the thermostat housing as well. Your vehicle shall rise again.

 

[J.D.H.]

To the potential buyers, I live in south florida.


Anyways, I did get a mechanic(friend) to look at it. He ran some quick tests, with his scanner. He said it wasn't putting out any codes. But he did notice that the battery cable was slightly loose. He tightened it up, and charged the battery, and it did crank up....for a few minutes. It started, was running decent(a little rough), but died about 5 minutes later. Charge again, and got it to fire off once more, but it died shortly, and now it is back to not cranking up at all like before. It does turn over, but doesn't start up.


I would say the fuel pump is the same sound as ever, as for the security light, I have to go check that one out and get back to you.


Thanks for the input guys, and keep it coming.

 

[AtomicHoe094]

florida= clean as **** underneath.. howw muchh? lol

 

[SunlitComet]

Was his scanner capable of reading gm enhanced perimeters,B or C codes and SAE type perimeters and not just P codes?