Q: 2007 Dodge Grand Caravan hard detonation problems

asked by on

Caravan has hard detonation problems. Engine lacks power, cannot drive over 40 mph because starts to shake.OBD II Scanner detected engine misfire on cylinders 1, 3 (back) and 4 (front). So far have replaced sparks plugs (#4 was burned), spark plugs wires, ignition coil, knock sensor, TPS, Crankshaft Sensor and poured Cataclean into the tank. Two weeks later poured B-12 Chemtool (2 bottles), problem persists.

My car has 180000 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
  1. Home
  2. Questions
  3. 2007 Dodge Grand Caravan hard detonation problems

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

Get a quote

What others are asking

Q: Q: Car pulling right

Yes, a leaking power steering rack should be replaced as leaking power steering fluid can lead to a loss in steering assist. Have an experienced technician, such as one from YourMechanic, inspect the front end steering components for any looseness...

Q: When I drive a speeds of 25 to 35 the car shakes but if I drive speeds faster than 40 it doesn't shake.

Check the tires for any cupping on the tread. If the tread is cupping, then I recommend replacing the shock absorbers. Also, I recommend having all 4 tires checked for balance and make sure that they are good. A bent...

Q: Car running rough and shaking

Hello. I think the "fuel tank being open" you are referring to is a code for the evaporative emissions (EVAP) system. This system is used to capture fuel vapors and prevent them from entering into the atmosphere. If the powertrain...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.