Showing articles & questions for topic
L5-3.7L

Related questions

Question
Starter problem due to several possible issues.
Try another key first to see if this works before going into diagnosis. If this works then a replacement key will fix your problem. If the theft light will not go out on your dash then you know it is...
Question
Ticking noise during quick acceleration
If you are using an oil bath type air filter it could be the cause of the problem. The oil in the filter can contaminate and coat the mass airflow sensor and throttle plates with oil. This will cause all...
Question
Car bogs down when I cut the wheels too sharp
Your vehicle has a variable power steering assist. If you turn the steering wheel, a sensor will detect that the wheel is being turned and if you go all the way to lock the wheel the assist is lowered. This...
Question
Oil Pressure Issues
The PCV system on this engine is incorporated into the air filter housing and has no serviceable parts. If there is excessive oil in the air filter housing then the entire housing would need to be replaced as an assembly....
Question
3.7 engine temperature gauge runs between middle to 3/4, leans a little more to 3 /4 never over is this normal
Hi there, thanks for writing in about your 2007 Hummer H3. The temperature should typically rest more towards the middle of the gauge. You should have the vehicle tested to see if the engine is running hot, or if it...
Question
Headlight not working
The headlight low beam may have gone bad when you got in the accident. The bulb would need to be checked and replaced. I recommend seeking a qualified mechanic, such as one from YourMechanic, to come and test your vehicle...
Question
Car suddenly went into limp mode
Hello and thank you for contacting Your Mechanic. Your Hummer could have the brake system engaged for the traction control. Disable the traction control and see if the engine will increase in speed. Another thing to check is the...
Question
Fault ABS fault traction
I would suggest first checking the ABS sensors at the wheels as they are known for being very sensitive and relaying false readings. Things as simple as dirt and debris can cause these to not work properly. Since these are...
Question
How much is it to replace the rear main seal on a 2007 Hummer H3
Hello. It is common for the rear main seal to leak on this engine. Over time the seal fails and this occurs. You will need to take this to a shop that can remove the transmission to change the seal...
Question
My car is overheating when the air conditioning is on - 2007 Hummer H3
Hello. Running the A/C will put extra strain on the engine and cause it to heat up quicker. If your vehicle is overheating, you should keep it below 280 degrees at all cost. This is the temperature when extreme irreversible...
Question
My service light says service temp. What do I need to look for?
Hi there. A low coolant level can illuminate the service light and create the heating and AC problem you have described. Check the coolant level while the engine is cold and top it off as necessary. Also, look around the...
Question
Why does an Hummer H3 oil change cost more? 2003 Hummer H3
Hello - the H3 has a 6-quart oil change capacity, which is more than most engines these days (4 or 5 qts), and synthetic oil is recommended. These are the only 2 logical reasons for increased oil change cost. Hope...
Question
Hello 2006 model Hummer car's fuel consumption too high
Hello: In most cases, the OBD-II error code you wrote down in your question is related to a faulty crankshaft position sensor. When this component is damaged, it can impact the ignition timing of the engine, causing increased fuel consumption,...
Question
I need a thermostat replaced do I need to replace the water pump as well
Typically, the scenario is the reverse: that is the water pump fails and the question is should the thermostat be replaced at the same time that the water pump is replaced. The answer is absolutely because the thermostat itself can...
Question
Need to know where the ground wires for the motor to frame are located.
Hi there. Check the back of the engine around the cylinder head. The wire will either be a silver color wire and also black in color. The wire will connect to the frame or the body with an alternate ground...
Question
I have hummer h3 that needs a raditor i have the raditor need to know your labor fee and do have to buy antifreeze and.i have spar
To obtain the requested quote, please visit YourMechanic’s radiator replacement service page. Once on that page, click on "Get a Quote" and enter your vehicle information (year, make, model). You are welcome to buy your own parts and book a...
Question
I parked my truck for 5-10 mins. Tried to turn it on, now it wont start, called a tow tow truck 15-20mins later my truck turned on
It is very likely that you have a powertrain control module failure. This can happen often on many GM vehicles. I would recommend having the powertrain control module tested and replaced as necessary in order to resolve this issue. After...
Question
Possibly replacing brake light switch for 07 GMC Canyon.
The brake light switch is located on the bracket to the brake pedal. There are two screws that secure the switch to the bracket and a harness plug. All you need to do is remove and replace the switch and...
Question
Rejects the nozzle when filling gas
Hello, It sounds like you may have an issue with your evaporative emissions control system. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors...
Question
Engine whining
The typical cause of a whining sound during engine idle; which progressively gets louder during increase in RPM is a belt, pulley or faulty pump (either AC, water pump or power steering). If you didn't remove the AC belt, this...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question