2005 Chevrolet Trailblazer Ext - Answered Questions & Fixed issues

Sounds like the front main seal or front oil pan seal. Its not leaking down from the top of the engine is it? If not , have the front seals checked.

PO340 is a 'Camshaft Position Sensor A - Bank 1 Circuit Malfunction' code. It's either a 'sloppy' timing chain or a 'Alzheimered' ECM; to the best of my knowledge. I don't know of another solution at this time.

Common problem on the 03-06 Trailblazer instrument clusters for the fuel gauge to go out. It's usually caused by one of two main problems, either the stepper motor on the cluster's circuit board is going out or the sending unit on the fuel pump is going out. Check out this blog post about the problem - Trailblazer fuel gauge problems

Donde esta la valvula de expancion fe un trailblazer2006

High idle on start is normal, so no worries there

Gauge problem ,bad stepper motor ! How to repair GM Instrument Cluster Speedometer Gauge Stepper

open hatch and remove the screws around the wheel well and with screw driver or trim tool pry away to pop retaining clips

was the system evacuated prior to recharging --do you have a full charge if not vacuumed prior to charging moisture can freeze causing a blockage also if not fully charged system can ice up or not function correctly

2005 Chevrolet Trailblazer Ext, your transmission is defective

where is what located

Sounds like it is related to the security system...is the keyless entry working OK? Try unlocking the drivers door with the key to dis-arm the alarm...clean and lubricate ignition key with PB Blastor and work in/out and turning right to left in ignition switch...a rare but effective fix...hope this helps.

Bummer deal! This may be a way to tell you some tail lights are burnt out. Some cruise controls have a fuse in a second location. The fuse is not in right or is blown. Check with a new fuse. Hope this helps. ...gc http://www.auto-tune-up-and-repair-options.com/

Most likely weak battery.

Sounds like a broken transmission or motor mount and is putting shift cable in a bind.

Take off the transmission pan to find them.

this is hard to say, not knowing whats wrong, it may be a bad waterpump or bad fan clutch,the fan clutch is the most common problem on these type of trucks,but could be the pump,to drive 25 miles i dont know,tell you what, open the hood with the engine off, grab the fan and try to spin it,if it binds up then its okay to drive, but if you grab it and move it back and fourth and theres alot of play then its a gamble but a would think it would be okay just keep an eye on the temp gauge, if it starts to overheat then shut it down and tow it the rest of the way,hope this helps,

This is a pretty common issue for Trailblazers to have. Here's a link with more information about these GM gauge problems. And where you can purchase replacement parts on Amazon if you want to do the repair yourself. Trailblazer Speedometer

Many speedo dials on many American models seem to suffer an early demise. It usually turns out to be the dial itself which is faulty, so I'd recommend checking and changing this first

Check out the fuel level sensor, and or the guage itself. These guages do tend to out, can replace the little stepper motor on the back of it for cheap.

BAD INTRUMENT CLUSTER HAVE SEEN IT PLENTY ON GM CLUSTERS TRUCKS CARS ALL THE NEEDLES GO WACKY.YOU CAN LOOK ON EBAY THEY HAVE REPAIR PEOPLE FOR 70 BUCKS THAT WILL TOTALLY GO THROUGH THE CLUSTER AND PUT ALL NEW BULBS IN IT.AND YOU CAN DRIVE IT WITH NO CLUSTER IN IT WHILE YOU GET IT FIXED .ITS A PAIN BUT CAN BE DONE.