P0128- Coolant Temp below Thermostat. Sounds like the thermostat is stuck open. Do you get heat from the heater when the car is at operating temp. if not I would start there. Hope this helps.
This is the
TThis
I have done a few of them. Yes they all were a pain. I used a larger socket on the bolt. Problem I had is the mechanism was rusted and wouldn't fully release (or at all) the tire to the ground. I ended up cutting the cable.
The alternator wouldn't have anything to do with either of the problems your having ! The key getting stuck in the ignition could be a problem developing with the lock cylinder . Can you turn the key to the off position an then it won't come out ? Or it won't turn to the off position an then not come out ? There are safety devices in place that won't let the key come out if not in gear an foot on the brake pedal etc... electronic an they do fail . Electronic Park Lock (EPL)/Ignition Lock Cylinder Control Actuator:Linear Shift Assembly: If the vehicle is equipped with a column mounted gear shift, it has a linear shift assembly on the steering column. The linear shift assembly has a cable that runs from the linear shift assembly to the ignition lock cylinder case. The purpose of this cable is to prevent the ignition key from being turned to the OFF position when the transmission is in gear and the vehicle may still be moving. The linear shift assembly cable contains a pin that is spring loaded to mechanically prevent the ignition key cylinder from being turned to the lock position when the vehicle transmission is not in the PARK position. If vehicle power is lost, and/or the transmission is not in the PARK position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.
Now for the stall at stops , Your vehicle has Throttle Actuator Control (TAC) System ,electronic throttle control or drive by wire ! It is electronical controlled .
There are sensors in the gas pedal an on the throttle body ,they are connected to the PCM/ECM - engine computer with wiring ! There is a DC electric motor on the throttle body , this is what opens the throttle plate . Throttle plates do become dirty with varnish an stuff that can cause idle problems ! There are videos on youtube showing how to clean a throttle plate . How to Clean Throttle Body 2007 Chevy Trailblazer
The right rear brake on my Granddaughters car was so worn that the pad jammed when turning backwards stopping any backwards motion. When going forward it did not jam and could be pushed or driven forward. Tell everyone that if you hear scraping noises when applying brakes to get them checked right away.
Hello Glenn,
Your not the only owner that is, or has complained about this
glitch.
See More (link below) On This Problem Via Bulletin No.: 05-08-42-001
Read 3rd post MrShift@Edmunds:
http://answers.edmunds.com/question-Hey-I-flickering-headlights-interior-lights-03-Chevy-TrailBlazer-L6-What-I-check-17232.aspx
No easy fix here, or even a fix period... although the last paragraph in the bulletin does suggest a 90% reduction in occurrences. This issue represents a safety concern and should be moved into a recall notice category. Good Luck On This One...Sorry I can't assist.
You may have to change the rad. support to get the proper holes to line up. Check with your local salvage yard and see if the parts are compatible in their cross reference book, before you start
The warning light means the alternator is not producing power to send to the battery. The light is grounded thru the alternator and once the alternator starts charging the voltage reverses and the light goes out.
You should test the alternator output on the truck and there may be a problem with the wiring.
Have you checked the pressure with a mechanical gauge to make sure the gauge on the dash is correct ?
And did you check the rod and main bearings for excessive wear when you replaced the pump ?
Trace where the 2 hoses / pipes come out of the firewall to the engine and where they are connected to the engine. Disconnect both hoses and replace with another heater hose connecting this where the 2 heater hoses used to connect to the engine. You may have to get new clips depending on whether the original clips were the ***** up type or the clamp on type.
Check for pinched broken wires between door and pillar, you will have to remove the rubber boot to check the wires.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
A bad CAN data circuit , no power or ground to the module ! Do you have any DTC'S
DTC U0001 High Speed CAN Communication Bus
Modules connected to the high speed GMLAN serial data circuits monitor for serial data communications on the high speed GMLAN network during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module detects a bus-off condition, a DTC U2100 will be set. This DTC can be retrieved as history only.
Are you talking about radiator fan, my info shows electro/viscous fan clutch. Can you check for applicable trouble codes? Around here some of the national brand auto stores will check codes for free. My info shows a list of codes for that fan system as long as my arm.
You should be able to pull fan fuse in under hood fuse block, so the battery doesn't run down, till you find out what is going on.
Before you get too far, did you check applicable fuse circuits for voltage? Even if the fuse is good, if no voltage, the circuit is still dead. Use a testlight to check voltage. My info showed two fuses for brake circuit. One is in the rear seat fuse block.
Your owners manual should have fuse location info.
Have you tried operating headlamps in manual mode, not automatic? Do they work correctly in manual mode?
You have a low beam fuse in under hood fuse box. With headlamps on, low beam, any voltage at that fuse circuit? Even if the fuse is good, if no voltage on fuse circuit, the circuit is still dead.
Any applicable trouble codes? Some of the national brand auto stores will check codes for free.
My info shows second fuse box under rear seat.
