Rick's Free Auto Repair Advice

Posts Tagged: Cobalt

Uneven brake pad wear – GM vehicles

Fix Uneven brake pad wear – GM Vehicles Uneven brake pad wear on 2007 Chevrolet Cobalt after brake job. HHR, Pontiac pursuit, Pontiac G5 after brake job. When a repair fails after you’ve follow the procedures to the letter, it’s time to stop and check the factory service bulletins for updated parts or procedures. You can subscribe to an online service like eautorepair.net or alldatadiy.com for about $30/year. Then you can access repair procedures, service bulletins, and wiring diagrams. The service bulletins alone can save you a lot of time and … Read More

Spark plugs fouled with oil

Spark plugs fouled with oil Spark plugs oil fouled, oil in cylinders, excessive oil consumption on Malibu, Cobalt, Alero, Grand Am, Pursuit, Saturn L with GM has issued a technical service bulleting (TSB) #05-06-01-003C for issues relating to excessive oil consumption, spark plug fouling, and oil in cylinder for the vehicles shown below with the Ecotec 2.2L 4-Cylinder Engine (VINs D, F) 2004-2005 Chevrolet Cavalier, Classic, Malibu 2005 Chevrolet Cobalt 2004 Oldsmobile Alero 2004-2005 Pontiac Grand Am, Sunfire 2005 Pontiac Pursuit (Canada Only) 2004-2005 Saturn L-Series, ION, VUE If you … Read More

Engine ticking noise

Fix engine ticking noise Cobalt, Malibu, Colorado, Envoy, Hummer, Ion, Saab GM has issued a technical service bulletin (TSB) PIP3972A to address a ticking sound on the following vehicles: 2004-2007 Chevrolet Malibu 2005-2007 Pontiac G6 2007 Saturn Aura equipped with a 3.5 LX9 The ticking sound is heard inside the vehicle and appears to come from the right side of the dash at idle speeds or stops. The noise sounds like a lifter click or solenoid click. It is neither. GM says the noise is instead coming from the right … Read More

P1516 P2135 P2138

Fix codes P1516 P2135 P2138 GM has issued a technical service bulletin (TSB) 07-06-04-003 to address a problem with a reduced power and REPEATING trouble codes P1516 P2135 P2138 on the following vehicles: 2005-2006 Chevrolet Cobalt, Cobalt SS, Malibu 2006 Chevrolet Colorado, TrailBlazer 2006 GMC Canyon, Envoy 2006 HUMMER H3 2005-2006 Saturn ION, ION Red Line 2006 Saab 9-7X The codes P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance, P2135 Throttle Position (TP) Sensor 1-2 Correlation, P2138 Accelerator Pedal Position (APP) Sensor 1-2 Correlation, may NOT require replacement. … Read More

Rough idle P0171 P0300 P1174

Fix rough idle P0171 P0300 P1174 Engine runs rough, P0171, P0300, P1174 on Saturn Ion GM has issued a technical service bulletin (TSB) 08-06-04-001 to address engine Rough idle P0171 P0300 P1174 problems on 2006-07 Chevrolet Cobalt and HHR, 2007 Pontiac G5 and G6, and 2006-07 Saturn Ion with the 2.4L engine. The engines in these vehicle may experience injector clogging that results in rough operation and trouble codes P0171, P0300, P1174. GM advises that if one injector is plugged, you must replace all injectors with an updated version (Part 12602480) … Read More

P0480 Cobalt Fix

Fix code P0480 on Cobalt This vehicle has a 2-speed cooling fan. If you run into the P0480 code and find that the fan will only run on the highest speed, start by checking for a blown cooling fan fuse #1 in the underhood fuse block. If that’s ok, swap cooling fan relay #1 with the high speed cooling fan relay #2. Both relays have the same part number. Rest the PCM to clear the trouble code and drive the vehicle. If the low speed relay is bad, the swap … Read More

Chevrolet Cobalt Overheats

My Chevrolet Cobalt Overheats There’s quite a bit of overheating chatter about this vehicle on tech forums about Chevrolet Cobalt Overheats. If the cooling fans come on, try bypassing the heater core with a length of heater hose. If the problem goes away, you’ve got a plugged heater core. Also, check the hose from the engine to the overflow (surge) tank to make sure it’s not plugged. If the cooling fan doesn’t come on, check the #1 (30A) fuse in the underhood fuse box. If that’s good, move on to … Read More

Oil leak Cobalt Mailbu G5

I have an Oil leak Cobalt Mailbu G5 GM reports that an oil leak that appears to be coming from behind the starter motor is actually coming from a leaking oil pressure switch. The leak appears on 2.2L 4-cylinder engines made prior to 2/19/07. GM has issued a new part that holds up better. Replace the switch and clean up the old oil. © 2012 Rick Muscoplat


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