My buddy has a 99 ecsb 5.3 AT. when he puts it in 4WD it does nothing. Is it in the switch a relay or what?
My buddy has a 99 ecsb 5.3 AT. when he puts it in 4WD it does nothing. Is it in the switch a relay or what?
Mike
07 Avalanche LT1 w/5.3 We call her Ava
it is the push button
Mike
07 Avalanche LT1 w/5.3 We call her Ava
do the light flash? check the vaccum solonid on the firewall. bypass it the front diff should engage then presh button to engage transfer case
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
Is it vacuum? I don't know it's my buddies truck and I havn't even looked at it.
Mike
07 Avalanche LT1 w/5.3 We call her Ava
Encoder motor. I promise.
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
What the hell is that?
Mike
07 Avalanche LT1 w/5.3 We call her Ava
The thingy-ma-bob that bolts to the transfer case...which makes the 4WD happen. (In Layman's terms. I could get technical, but that would spawn more questions.)
I have never known for a 4WD dash switch to go out. Its always the encoder motor. TRUST ME. Don't ask questions. Just replace it.
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
ok friend I will
Mike
07 Avalanche LT1 w/5.3 We call her Ava
i replaced mine and it wasnt the issue. mine was the solonoid on the firewall.Originally Posted by txarkitekt
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
Nothing is vacuum operated on a 99 ECSB with 5.3. Only on T-series blazers & pickups.
The 99-02 had very high failure rates on the switches. If he can scan the truck and give us a code, we will be able to say switch or encoder motor. Otherwise it's just a guess.
When he pushes the switch button for 4x4, what does the switch(lights) do?
2001 ECSB 4x4, 5.3, Radix, 3.0 pulley, VHP Trucker cam, 216/224 .551/.551 115 lsa, 1.8 Crane roller rockers, 4L65E, Yank SC3000, 3.73, Cal-Tracs, HPTuners.
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