99 Tahoe - PLEASE HELP!!!
#1
TECH Enthusiast
Thread Starter
iTrader: (28)
Join Date: Feb 2009
Location: Oklahoma
Posts: 631
Likes: 0
Received 0 Likes
on
0 Posts
99 Tahoe - PLEASE HELP!!!
Im sure this has been covered numerous times but I can't find the answer I need.
I've got a 99 Tahoe aka piece of ****. It won't start. It's got a slow crank, I don't hear the fuel pump kick on and it back fires or kickbacks when cranking. It sparks but it's very slow, like "spark" 1 Mississippi "spark"
Here's what I've done to the truck since I've had it, no specific order!! PLEASE HELP!!!!
***I reset the timing
***Installed different pcm than original
***I turned the key on, left it on for 10 minutes 3x, got the security light off and still nothing. I've been jacking with this piece for over a week and just when I thought I was done, this... won't start.
***I replaced engine, was told it was from 97 but had earlier block so I swapped the reluctor wheel and crank sensor onto the new motor.
***All my grounds are hooked up.
***Replaced fuel pump relay
***Charged battery for a few hours, still slow cranks.
I've got a 99 Tahoe aka piece of ****. It won't start. It's got a slow crank, I don't hear the fuel pump kick on and it back fires or kickbacks when cranking. It sparks but it's very slow, like "spark" 1 Mississippi "spark"
Here's what I've done to the truck since I've had it, no specific order!! PLEASE HELP!!!!
***I reset the timing
***Installed different pcm than original
***I turned the key on, left it on for 10 minutes 3x, got the security light off and still nothing. I've been jacking with this piece for over a week and just when I thought I was done, this... won't start.
***I replaced engine, was told it was from 97 but had earlier block so I swapped the reluctor wheel and crank sensor onto the new motor.
***All my grounds are hooked up.
***Replaced fuel pump relay
***Charged battery for a few hours, still slow cranks.
#5
Custm2500's Rude Friend
iTrader: (17)
99 Tahoe. So that's the old square body. 5.7 Vortec with distributor and spider injection?
As mentioned, the slow crank is gonna be battery, starter, or the cables.
How old is the battery???
Look at the battery + and ground cables, do you see any corrosion? can you see the copper and is it green or dark colored???
Do you know if the starter is original???
As mentioned, the slow crank is gonna be battery, starter, or the cables.
How old is the battery???
Look at the battery + and ground cables, do you see any corrosion? can you see the copper and is it green or dark colored???
Do you know if the starter is original???
#6
TECH Enthusiast
Thread Starter
iTrader: (28)
Join Date: Feb 2009
Location: Oklahoma
Posts: 631
Likes: 0
Received 0 Likes
on
0 Posts
I forgot about this thread... but I got it figured out.
I had an extra starter layin around, put it on, no change. Charged battery, no change... long story short... it had the wrong nuts on the rockers and they all backed off, the valves werent opening all the way and it was out of time!!!
I had an extra starter layin around, put it on, no change. Charged battery, no change... long story short... it had the wrong nuts on the rockers and they all backed off, the valves werent opening all the way and it was out of time!!!
Thread
Thread Starter
Forum
Replies
Last Post
mitchellmade
Tuning, Diagnostics, Electronics, and Wiring
2
09-27-2015 08:27 PM
lxcoupe
GMT 800 & Older GM General Discussion
2
09-23-2015 12:11 AM