Q: Just replaced catalytic converter. Ran great that day, today it's again struggling to get up hills. What else should I do? 2001 Pontiac Grand Am

asked by on March 05, 2017

Having trouble going up hills, replaced cat. Still struggling on going up hills, what else could fix this issue?

My car has 140000 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

What kind of fuel should I use?
You should use unleaded gasoline, with an octane number of 87 or higher.
Car keeps stalling.
A check engine light is warning that their is some fault in the pcm or other sub computers, the fact that its stalling and a cel (check engine light) is illuminated tells me there is definitely a problem with either...
Check Oil Light coming on.
Hello. You are correct that the light can come on for these reasons. If the oil light comes on and there is no engine noise then it is more than likely the oil pressure sensor that needs to be replaced....
After shifting into drive, car lunged forward
It could just be that the transmission control electronics are faulty or that the Transmission Control Module (TCM) just needs an update. There is a Technical Service Bulletins (https://www.yourmechanic.com/article/how-to-use-a-technical-service-bulletin-by-parker-hill) (TSBs) regarding shift quality concerns for your vehicle. It's number LI27.00-P-051451...
Where is the TPMS module located. I know there is a device in each tire but where is the main module? Thank you
Hi, thanks for writing in. I'm not 100% certain for the 2013 Dodge Dart Turbo, but most of the late model Dodge sedans have the TPMS module (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-the-tpms-light-on) located under the dashboard on the driver side, near the main fuse...
Number #1 cylinder misfire?
Hi there. As you already know, replacing components without proper diagnoses can expensive and time consuming without resolution. Assuming, the engine is mechanically sound, good cylinder compression and valve train properly opening and closing, circuit tests need to be performed....
my 2006 Pontiac torrent wont start
You need to check to see if the theft light is on with key in the on position? If it is then you may need to have the theft system checked and may need to reprogram the system using the...
How many O2 sensors are on a 2005 Cadillac CTS 3.6L V6 base sedan, I just purchased it used.
There are 4 oxygen sensors on your model, two upstream in the manifold area, and two after the catalytic converters (one per converter). Oxygen sensors are only replaced if the actual output wave form, and voltage range, is out of...
Maybe transmission
Hi Aiden. Thanks for contacting us tonight. With nearly 250,000 miles on your Nissan Altima, it's quite possible that an inner transmission seal is leaking, causing the shifting issues you are experiencing. It's also possible that you simply have contaminated...

Related articles

How Long Does an Oxygen Sensor Last?
Today’s Today’s automotive exhaust systems are much more complex than they once were. They must be in order to comply with much stricter environmental controls and the requirement to create less pollution. Your car’s exhaust includes many different components that...
Symptoms of a Bad or Failing Automatic Timing Advance Unit
If your car experiences engine knock, sluggish performance, or excessive black smoke, you may need to replace your automatic timing advance unit.
Pontiac Certified Pre-Owned (CPO) Car Program
If If you’re in the market for a used Pontiac vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...