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2003 GMC Sonoma Extended Cab - Page 5 Questions & Answers
Engine warms well, heater fan blowing well, but
It could be one of two things.1. Bad thermostat. Your thermostat is pobably not opening when the engine warms up. Install a new thermostat and you should be OUT OF THE COLD. If not,2. Your heating core and radiator is probably clogged. One way to solve this is. Flush out your radiator with radiator flush kit. Pease read your owners manual, (YOU NEED TO USE A SPECIAL TYPE OF ANTI FREEZE). If you use the the green color Presotne anti freeze, It will gradually corrode through the linings of your radiator. And the green color prestone anti freeze will blow out the radiator. So read your owners malual ( I beleive it says you have to use Dextron Anti Freeze ( Pink Color).. Replace your thermostat and flush out your radiator. Then refill your radiator with dextron anti freeze. Also make sure the anti freeze resivor is filled to the proper level.. Once you do all of this, YOU DEFFINITLY WILL BE IN HEAT.. YOU CAN DO THIS YOUR SELF ( iT WOULD TAKE ME NO MORE THAN 1 TO 2 HOURSFOR ME TO DO THIS IN MY DRIVEWAY) OR YOU CAN HAVE THIS DONE AT ANY QUICK LUBE LOCATIONS... HAPPY MOTORING
4x4 notworking
Pull front axle and check front differential for gear damage or wear. mine had the gears stripped about 1/4 of the way replaced at cost with labor 300.00. working fine now.
2003 GMC Sonoma 81000 miles
CODE PO155 - HO2S 21 BANK 2 SENSOR 1 HEATER CIRCUIT MALFUNCTION CONDITIONS.CHECK O2 SENSOR FUSE AND WIRING CRCUIT BEFORE BUYING A NEW HO2S.IF SENSOR BAD REPLACE IT.THEN YOU CAN CLEAR THE CODE.
While driving 35 mph transmission just lost all
Hi Greg,First thing to check is the Automatic Transmission Fluid make sure its there. If you need to refill have the leakage attended to soonest! Look for broken universal joints if its rear wheel drive and for a broken CV joint if its a front puller. If its none of these get ready to pay big bucks.Regards Johngee10
02 sensor heater circut malfunction
htr ckt malfunctions are mostly due to worn or faulty htr elements in ur sensor. i would first chek all ur fuses to make sure u even have voltage going down to ur o2 sensr, if they check out good then safe to say ur o2 sensr is faulty an should b replaced....good luck
How to reset the check engine light
You need an OBII scanner to reset engine light. Have scanned and pull codes to identify what triggered light. Any good shop or parts store can do it for you.
Need the order in which the spark plug wires go
the Distributor cap should be numbered. from when i last did mine i do believe that when i was facing the truck the drivers side of the cap went 5,3,1 and the passenger side went 2,4,6 and this is going from the back of the cap to the front. if all else fails you can just plug them in and you will notice the truck either running ruff or stalling/not starting. if so just swap the wires around till it works. hope this helps!
We need to find out
these are found either on the intake at the back of the motor or by the oil filter above the filter in the oil filter mount.should be a single wire some are 2 wire connectors.
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