an Ignition switch causing Transmission issues?
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Joined: Apr 2018
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an Ignition switch causing Transmission issues?
Hello. My truck has been in limp mode for a couple weeks now. My cluster is lit up like a Christmas tree with Service Brake System, Service 4WD, ABS light, parking brake light, check engine light. if i wiggle the key nothing changes. I am kinda at a loss. I do plan on going to the dealer for an ignition switch just to do it myself. or $270 for them to install it. but I want to know if I have more issues than just a Ignition switch. Because I feel like I do.. lol.
Sorry for the incoming wall of text but it has a lot of information. Thank you for any help
2004 Chevy Suburban 5.3 1500 4WD ~190k miles ~29k miles on the motor (everything else is original) Nevada truck so no rust or any visible corrosion anywhere on the connectors underneath.
Intermittent check tire pressure and tighten fuel cap warning messages
The Chime dings for 30 seconds or so
Service 4WD system
Service Brake System
ABS light
Parking brake light
Check engine light
All other gauges function normally besides the fuel pressure which sometimes drops down to 10 or 15 pounds at idle but runs and idles great despite what the gauge reads (already did the pressure sender, not worried about this at all right now)
My current codes
P0740
P0753
P0758
P0785
P2761
The transmission fluid looks great, nice and pink! I think the fluid was changed 29k miles ago when we had a new motor dropped in.Since the Service Brake System, Service 4wd lights have been on its been driving like it is in limp mode or in 4th or 5th gear. Flooring it only makes the car crawl.
When the Service brake system/ Service 4wd lights go away, the truck drives fine. No transmission issues until they come back on
I've tried wiggling the key around in the ignition but it doesn't change anything.
A majority of my fuses for Hvac, 4WD, and Ignition all have been hot as in I can see score marks on the metal studs on the fuse itself. But NONE of the fuses have/are blown.
I've cleaned the ABS ground under the driver seat on the frame and that made all of my lights go away for a day and it drove fine for that day. but they came back the next day. And in limp mode... So I did it again and it did not change anything this time
:/
My A/C worked fine until all of this started happening, it still gets cold but the blower motor itself does not turn on for front OR rear. Cruise control no longer works, and my right turn signal turns on the high beams.
Battery terminals are tight. all of the grounds I could find seem to be tight and making good contact. New Alternator 15k miles ago.
Sorry for the incoming wall of text but it has a lot of information. Thank you for any help
2004 Chevy Suburban 5.3 1500 4WD ~190k miles ~29k miles on the motor (everything else is original) Nevada truck so no rust or any visible corrosion anywhere on the connectors underneath.
Intermittent check tire pressure and tighten fuel cap warning messages
The Chime dings for 30 seconds or so
Service 4WD system
Service Brake System
ABS light
Parking brake light
Check engine light
All other gauges function normally besides the fuel pressure which sometimes drops down to 10 or 15 pounds at idle but runs and idles great despite what the gauge reads (already did the pressure sender, not worried about this at all right now)
My current codes
P0740
P0753
P0758
P0785
P2761
The transmission fluid looks great, nice and pink! I think the fluid was changed 29k miles ago when we had a new motor dropped in.Since the Service Brake System, Service 4wd lights have been on its been driving like it is in limp mode or in 4th or 5th gear. Flooring it only makes the car crawl.
When the Service brake system/ Service 4wd lights go away, the truck drives fine. No transmission issues until they come back on
I've tried wiggling the key around in the ignition but it doesn't change anything.
A majority of my fuses for Hvac, 4WD, and Ignition all have been hot as in I can see score marks on the metal studs on the fuse itself. But NONE of the fuses have/are blown.
I've cleaned the ABS ground under the driver seat on the frame and that made all of my lights go away for a day and it drove fine for that day. but they came back the next day. And in limp mode... So I did it again and it did not change anything this time
:/
My A/C worked fine until all of this started happening, it still gets cold but the blower motor itself does not turn on for front OR rear. Cruise control no longer works, and my right turn signal turns on the high beams.
Battery terminals are tight. all of the grounds I could find seem to be tight and making good contact. New Alternator 15k miles ago.
Last edited by Nevadaman; Apr 8, 2018 at 8:15 PM.