Sometimes when you start it,it will just turn over and won't start
Let it sit for a minut and it will start.the other day a drove it for like an hour got home
Shut it off then tried to start it again would not start,I tried it 8 times would not
Start,tried it again in like 2 hours it started right up.
It has 81,000 miles on it,I changed the fuel pump and filter,ignation mod. It still does
It.any ideas what's going on? Help please 3.3/ 6 cyl

. Check for codes.

. Replace the Crankshaft Position Sensor, if the Ignition Control Module (ICM) you installed was new. A failing ICM was my first thought.

. Replace the coil packs, if the problem persists.

Quote:

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Originally Posted by TxGreaseMonkey

. Check for codes.

. Replace the Crankshaft Position Sensor, if the Ignition Control Module (ICM) you installed was new. A failing ICM was my first thought.

. Replace the coil packs, if the problem persists.

---

Icm was new,there are no coded and one of the coil packs was replaced
Before I got the car,thanks

Quote:

---

Originally Posted by TxGreaseMonkey

. Check for codes.

. Replace the Crankshaft Position Sensor, if the Ignition Control Module (ICM) you installed was new. A failing ICM was my first thought.

. Replace the coil packs, if the problem persists.

---

You were right,it was the coils,thank you very much

Good job.

Quote:

---

Originally Posted by roger6632

you were right,it was the coils,thank you very much

---

It did start good for 2 days,yesterday I went to the store,I came out started it it ran for like 3 seconds and stopped
I did this for like 5 times then it started,what's going on??

Check the ignition switch for wear, pitting, or melting.

OK I tried everything you said,the last was the ignition switch,it was working good for 5 days
Until yesterday,I used it in the morning was good and went to use it later in the day,it started to do the same thing,it would start,run for a few seconds and die,I tried it like 6 times sane thing
Waited for like 30 minuts and it started and ran good,any more ideas?? Thanks

. Clean the main ECM ground.

. Replace the Crankshaft Position Sensor.

Have the ECM tested, if the problem persists.

I put a crankshaft position sensor in it worked for like 2 days.ecm would you know where the location is?
This is the computer your talking about right?

Yes, it's the computer. It has a large gang of wires going to it. GM likes to place them near the fuse box, in many cases.