Recently traded a spare 1998 Silverado K2500 RCLB 454 Vortec truck for this 98 GMC. I paid $700 for the Silverado and drove it home.
Here's the $700 454 monstrosity!
I did pick up some PYO's for $100
Then, managed a SMOKING deal on some 265/75/16 Falken A/T Tires for $530 with tax.
Fast forward, I had a kid offer me his 98 GMC K2500 with 191K, 5.7 Vortec / 4L80E, with every single option checked for 1998 but leather, big block / diesel.
Naturally, I was on the way with the RCLB to trade! After trailering it 2 hours to his house, switching wheels and tires and working an even trade. The 98 GMC was mine.
The GMC sat for nearly two months due to "electrical" gremlins. The truck suddenly quit while driving down the road. So the Previous owner did the following:
Brand new complete ignition system
Brand new heads & gaskets
Brand new CPI to MPFI Delphi injection swap
Brand new starter
EVERY sensor under the hood was BRAND NEW.
Brand new timing chain and gear set.
Brand new crank sensor pigtal
How the engine bay looked when I got it home...
He replaced the ECM as well, because he thought the original was bad.
I put a brand new battery in the truck, tried to start it.... No start, ran codes. The only one that popped up was a crank sensor performance code.
I dug back into the motor, pulled the crank sensor, examined the pigtail. Found the pigtail was wired incorrectly, the 12V reference and the crank sensor output signal was reversed in the connector. Repinned the connector, tried to start. Still nothing.... Then I found this.....
Uh.... hand me another beer dear.... Somethings not right here. The crank pulley is 1/4" out forward of the rest of the pulleys! WTF? At this point I decided to look up through the crank sensor hole in the timing cover, I found the crank reluctor wheel was 1/4" too far forward in the hole and the truck wasn't picking up the crank signal. Thus the no-fire issue.
I tore the entire frontend back apart, down to the timing set. Found the crank gear wasn't fully seated! After fully installing the gear, buttoning the frontend back up. Doing a security relearn on the new ecm..... THE TRUCK FIRED RIGHT UP! After sitting two months!
I tried to move it at that point to verify the condition of the transmission, it laid over right into a 3rd gear start! !
Back to pulling codes, the truck was throwing 3 4L60E related codes..... But.... this is a 4L80E truck??? I found the ECM was tuned for a 98-99 Suburban with a 5.7 / 4L60E. I replaced the factory ECM and all was well!
Since that point, i've driven it quite a bit. I love the fact that the factory keyless entry works.
I've added LED tails, GMC center caps, Clear headlights, park lights and marker lights, done a 4HI mod, HID headlights. I have a few things left to do, such as replace the exhaust. (Previous owner cut it off after the cats because he thought it sounded "good") And install a new windshield.
I picked up a decent diesel bumper, which is going to be installed tomorrow. I still need to pickup a brand new front license plate bracket.
Before:
After: (My AWESOME wife's polish job on the bumper!)
I also have a brand new CD player to add to the truck, which won't happen this weekend. I need to source a nice pewter right front fender to replace the dented one.
I believe the only other things i'll do to this truck is a 3" body lift, window tint job and a clear LED third brake lamp.
I'll update with new shots of the bumper and headlights installed tomorrow!
Here's the $700 454 monstrosity!
You must be registered for see images attach
I did pick up some PYO's for $100
You must be registered for see images attach
Then, managed a SMOKING deal on some 265/75/16 Falken A/T Tires for $530 with tax.
You must be registered for see images attach
You must be registered for see images attach
Fast forward, I had a kid offer me his 98 GMC K2500 with 191K, 5.7 Vortec / 4L80E, with every single option checked for 1998 but leather, big block / diesel.
You must be registered for see images attach
You must be registered for see images attach
Naturally, I was on the way with the RCLB to trade! After trailering it 2 hours to his house, switching wheels and tires and working an even trade. The 98 GMC was mine.
You must be registered for see images attach
The GMC sat for nearly two months due to "electrical" gremlins. The truck suddenly quit while driving down the road. So the Previous owner did the following:
Brand new complete ignition system
Brand new heads & gaskets
Brand new CPI to MPFI Delphi injection swap
Brand new starter
EVERY sensor under the hood was BRAND NEW.
Brand new timing chain and gear set.
Brand new crank sensor pigtal
How the engine bay looked when I got it home...
You must be registered for see images attach
He replaced the ECM as well, because he thought the original was bad.
I put a brand new battery in the truck, tried to start it.... No start, ran codes. The only one that popped up was a crank sensor performance code.
I dug back into the motor, pulled the crank sensor, examined the pigtail. Found the pigtail was wired incorrectly, the 12V reference and the crank sensor output signal was reversed in the connector. Repinned the connector, tried to start. Still nothing.... Then I found this.....
You must be registered for see images attach
Uh.... hand me another beer dear.... Somethings not right here. The crank pulley is 1/4" out forward of the rest of the pulleys! WTF? At this point I decided to look up through the crank sensor hole in the timing cover, I found the crank reluctor wheel was 1/4" too far forward in the hole and the truck wasn't picking up the crank signal. Thus the no-fire issue.
I tore the entire frontend back apart, down to the timing set. Found the crank gear wasn't fully seated! After fully installing the gear, buttoning the frontend back up. Doing a security relearn on the new ecm..... THE TRUCK FIRED RIGHT UP! After sitting two months!
I tried to move it at that point to verify the condition of the transmission, it laid over right into a 3rd gear start! !
Back to pulling codes, the truck was throwing 3 4L60E related codes..... But.... this is a 4L80E truck??? I found the ECM was tuned for a 98-99 Suburban with a 5.7 / 4L60E. I replaced the factory ECM and all was well!
Since that point, i've driven it quite a bit. I love the fact that the factory keyless entry works.
You must be registered for see images attach
I've added LED tails, GMC center caps, Clear headlights, park lights and marker lights, done a 4HI mod, HID headlights. I have a few things left to do, such as replace the exhaust. (Previous owner cut it off after the cats because he thought it sounded "good") And install a new windshield.
I picked up a decent diesel bumper, which is going to be installed tomorrow. I still need to pickup a brand new front license plate bracket.
Before:
You must be registered for see images attach
After: (My AWESOME wife's polish job on the bumper!)
You must be registered for see images attach
I also have a brand new CD player to add to the truck, which won't happen this weekend. I need to source a nice pewter right front fender to replace the dented one.
I believe the only other things i'll do to this truck is a 3" body lift, window tint job and a clear LED third brake lamp.
I'll update with new shots of the bumper and headlights installed tomorrow!