Low power engine

135,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
CAMCAM
  • MEMBER
  • 1 POST
We have a 2002 Toyota Camry, the problem that we're having is when the car is cruzing at 55 to 60 miles per hour the car boggs down an doesn't allow you to go any faster. Now we would like to keep up with the traffic. We have taken it to the mechanic which he checked the computer, both 02 sensors, checked the catylitic converters, spark plugs, changed serpentine belt and we're still having an excelleration problem. The mechanic stated after cleaning the throttle body, that the problem could be the excellerator peddle sensor. We need your help now, Please!
Nov 20, 2009 at 12:22 AM
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Nov 20, 2009 at 5:36 AM
Avatar
LAVYEDC
  • MEMBER
  • 1 POST
Engine Performance problem
2002 Toyota Camry 4 cyl Two Wheel Drive Automatic 75000 miles

second hand Toyota Camry 2002
I drive in the city around 25 mile/hour and the engine use more gasoline ,what happen ?
Sep 23, 2017 at 5:15 AM (Merged)
Avatar
MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Just start with a full tune , scan and comp test, see if that shows any problems.

mark (mhpautos)
Sep 23, 2017 at 5:15 AM (Merged)
Avatar
GADAMART
  • MEMBER
  • 1 POST
Engine Performance problem
2002 Toyota Camry 4 cyl Front Wheel Drive Automatic 72000 miles ,it has no check engine lite on

the car start good then after warmsup it begins to shake a little then stops.I would appreciate if could give me an idea what could be wrong with it. I thank you.
Sep 23, 2017 at 5:15 AM (Merged)
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test the air flow meter and throttle position sensor.
Sep 23, 2017 at 5:16 AM (Merged)
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle