Skip the auto shop - Our mechanics make house calls

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.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Won't start after it runs for a few minutes until I let it set for hours.

Hello - if the Check Engine light is on, getting the problem codes is the first task. Check also battery and ground cable connections for corrosion or loose connectors. Determining whether you are missing spark or fuel during these "hot...

Q: TPMS light coming on while driving

The tire pressure sensors continuously broadcast their signal to the TPMS control unit. More than likely, one of the tire pressure sensors has failed. Unlike some TPMS systems, the system on your Acura should reset automatically after being driven. If...

Q: My car he got power and everything but I feel like he's plugs something hold it

You need to begin with checking the necessities. If your car is missing, you will need to check all of the following. Internal combustion engines (ICE) require spark, fuel pressure, injector pulse and camshaft timing to run. All of these...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.