Tag Archives: Check Engine Light
My 2003 Chevrolet Impala Is Over Heating
Hi my name is Jim. I got a 2003 Chevrolet Impala overheating. Already replace the thermostat but still overheating. Protech: You could have a bad cylinder head gasket or leaking intake gaskets causing your overheating problem, or it just could have a large air pocket in the cooling system from when you changed the thermostat. The check engine light is on and I have no…
1999 Chevy Silverado Hard Time Starting
I have a 1999 Chevy Silverado with 5.3 It is hard starting and has a miss at low RPM around 1500 and then it clears up when you accelerate. Any ideas what may be the cause. ProTech Does the problem go away when the truck warms up? No it doesn’t it still does it when warm. Ok, usually the intake gaskets leaking will cause a…
Check Engine Light Code P0300 On GM 2.2L and 2.4L
We have been seeing quite a few problems with the GM 2.2L and 2.4L engines. Mostly on model years 2005 through 2009. This engine is very common in the Chevrolet Malibu, Cobalt and HHR. As well as the Pontiac G5 and G6. This is the 4 cylinder. The problem I am going to talk about today is a check engine light and misfire codes. Car…
1999 Oldsmobile Cutlass Engine Light and Transmission Problems
Hey I have 1999 Oldsmobile Cutlass 3.1 liter vin J motor. When I go to accelerate up a hill the car kicks in out of overdrive(rpms surge between 2500-3000.) Any idea what it could be? ProTech: It sounds like the beginning of a transmission problem if it’s hunting for gears on an incline. I just had transmission replaced. The one in it now has 25000 miles…
1998 Mazda 626 Failed Smog Test With Code P0455
I am having to fix a Mazda 626 1998 EVAP gross gas leak, can you help me? ProTech: I sure can try…what seems to be the trouble? Smog failed test, a EVAP system gas leak. Things that usually cause a large EVAP leak are a loose or bad gas cap, a stuck open vent valve, a bad purge solenoid, or a break or crack somewhere in…
1999 Chevrolet Silverado Engine Light Code P0336
I have a 1999 Chevy Silverado 1500 series, 5.3. Code reads p0336 crankshaft sensor. Have replaced sensor 3 times and will not start. Put old sensor in and start. ProTech: When you replace the Crankshaft Sensor, you need to do a ‘crankshaft variation relearn’ with a scanner, or you will still have problems. How would i do that? You would either need a scanner like…
Saturn Vue Engine Light – SL2 Problems
Hey guys, I’m trying to replace the thermal sensor on my VUE 2009 responsible for the ambient temperature. On the dashboard it’s always stuck at 181 degrees. I read somewhere it’s behind the grill. Does anyone have any idea? Thanks for the help guys. Mechanic JK: Yes. The outside temperature sensor is located behind the grill. Actually behind it and in front of the radiator.…
1994 Buick Century P0341 Cam Sensor Code
I have a 1994 Buick Century v6 3.1 and im having 2 main problems. My first problem is I replaced the crank and cam sensors awhile ago and while everything went fine with the crank im having some problems with the cam sensor. When I got the new one in it gave me a P0341 code so I looked at it and it was faulty…
1996 Pontiac Grand Am Code P0171 and EGR
HI,I have a 1996 Pontiac Grand am that has two codes P0401 and P0171 can the two be relayed I know one is EGR flow insufficient and the other is fuel system lean. do you think the EGR Valve is staying open causing the lean. ProTech: They can be related yes. The p0171 is a lean code, and the p0401 is an EGR code. If the EGR valve…
1996 Chevrolet Suburban P0420 – Brakes Pulsate
My 1996 Chevy Suburban has a code Code P0420 code and bad sensors showing on code with large vacuum leak. I’ve sprayed carb cleaner all over the intake and brake booster house and all other vacuum lines and found nothing. I don’t know what else to do. ProTech: First of all the code P0420 is for a bad catalytic converter. Why do you think you…
2003 Chevy Silverado Check Engine Light and Transmission Slipping
What is the cause of reduced engine power? ProTech: What year, make and model of vehicle? 2003 Chevy Silverado 1500hd 6.0 engine. Is the check engine light on as well? Most times there has been a failure on a computer controlled component that has set the check engine light on, and that will usually cause the vehicle to into reduced power mode, which is basically…
2002 Pontiac Grand Am Temp Sensor and Hard Starting
Trouble code says IAT sensor on 2002 Pontiac Grand Am GT 3.4L. Have replaced it twice with two brand new ones from different stores. Still showing problem code. Has problems with no start or hard start after sitting for a few hours. Runs fine when engine is warm. Could it be a broken or shorted wire in the IAT sensor circuit that just isn’t visible…
1994 Pontiac Transport Van Starts Then Stalls
I have a 1994 Pontiac Transport van it cranks up then dies right away there is a little light that comes on when it dies bottom right corner of the dash it is round with an arrow pointing down what is that symbol mean and could this be my problem please help. ProTech: That could be the low coolant light, and probably not the cause…
1995 Chevrolet Camaro Has No Spark at Plugs
I have a 1995 Camaro 3.4 litre, will not start and has no spark….ran 2minutes this morning and just shut off. Still would not start after 2 hours. Getting gas. Coil packs and camshaft positioning sensor has been replaced and still no fire. ProTech: So it is getting fuel, but still does not have any spark, correct? Yes Do you by chance have a scanner?…