Recent content by mpd13078

Hello Everyone, Does the 2002 Chevy Trailblazer LT 4WD 4.2L I-6 Engine have an OIL PRESSURE SWITCH FILTER located internally below the oil pressure sending unit? What are acceptable readings on an oil pressure test gauge for this engine? (screws into oil pressure sending unit port) I want to...

It's as bad as it sounds. Knocking like a diesel. Glad the videos uploaded, my first time doing that.

So my ole blue is parked till spring as a project now. Made these videos & showed them to an ASE Master Mechanic I know, with him confirming 99.9% without working on it, it's the oil pump. Oil level is good, oil dipstick has no fuel smell, no head gasket floaties in the coolant. Been paid off a...

I do agree with you both in general, Garth & Capote. Biggest complaints I had read were about the transmissions (4L60E), but that could be due to lack of fluid & filter maintenance.

http://www.carcomplaints.com/Chevrolet/Trailblazer/ I found this web link that lists a variety of owner complaints to the (NHTSA) National Highway Traffic Safety Administration on all years of the Chevy Trailblazer. Some of the information is useful & disheartening.

http://www.carcomplaints.com/Chevrolet/Trailblazer/ According to this web link and to the data reported to the (NHTSA) National Highway Transport Safety Administration, the year 2005 is the worst & the year 2009 is the best.

I went to an alternator/starter re-build shop & they tested both the original & new re-man, both tested good so I put the new one on since it was only $62 with core charge. The battery was bad; voltage output was good, but the CCA was at 479. Upgraded to Duralast Gold-higher CCA. No common auto...

I'm going to start inspecting & cleaning the grounds exposed to the weather elements one at a time first, checking for results after each one. Post results soon, thanks for the ideas & advice.

I just put my meter on the battery & alternator, here are the readings: battery - to + = 13v-15v fluctuating alternator positive post to chassis ground = 14v solid alternator positive post to battery negative = 14v solid. I have checked the main ground under the driver side frame in the past...

Hello all, I replaced my original 13 yr. old Delphi alternator with a re-manufactured Delphi. Battery is a couple of years old. I decided to replace the alt. because SEL kept showing electrical code & the TB has stalled a few times in the past when accelerating from a stop. Fuel pump as been...

Greetings all, My TB stalled while gear was in park & low oil pressure light came on. Oil level is on dipstick is fine, regular oil changes, cleaned cam shaft position actuator solenoid not long ago. Check engine light is on, haven't pulled codes yet. Turned engine off, restarted fine...

Hello Everyone, How many total grams of R-134a fills an evacuated a/c system on a 2002 Chevy Trailblazer LT with front/rear air? Regular wheel base. I looked in the owner's manual & nothing is listed in capacities. The label in the engine compartment is gone. Can someone look in their engine...

Auto zone pulled up their a/c compressors on the computer & everyone listed to use PAG oil 46. I found the following information: http://www.techchoiceparts.com/refrigerant-and-oil-capacities/abcd#chevrolet General Motors issues Bulletin # 02-01-39-004B replacing PAG 150 oil with a lower...

I evacuated / vacuum pumped my '02 TB a/c system because I replaced my accumulator & orifice tube. How much & what viscosity PAG oil should I put back into the system when I recharge it? Still the original compressor. Thanks. I forgot to mention TB does have rear air controls if it makes a...

Calling on all a/c pro's on this AWESOME forum. 2002 Trailblazer, 137k miles, I'm the second owner - purchased at 35k miles, kept all maintenance up. My a/c blows great cold air for 15-20 minutes on a humid day, then the LP switch dis-engages the clutch. (I tested the LP switch just to check it...