Skip the auto shop - Our mechanics make house calls

Q: Engine flooding with fuel

asked by on

I had an exhaust leak on the drivers side. I went to replace the gasket and found two broken bolts. Slightly boogered one hole while removing the broken bolt. This caused me to remove the head to fix the bolt hole. I ended up pulling both heads to replace the head gaskets on both sides and replacing a o-rings and gaskets. I replaced the stock headers with tubed shorty headers. I gasket matched the exhaust ports on both heads. Put new spark plugs in due to mileage. I reassembled the engine, followed all torquing procedures. To remove the passenger side head I had to disconnect the wiring harness from the ECM. I had the battery completely disconnected during this removal. Started the truck and it ran ruff, code 300, miss fire like crazy. I could smell the fuel in the exhaust. Pulled the spark plugs and could smell the raw fuel. Brand new plug were wet and carbon burned. Truck ran for maybe 30 to 45 seconds. The truck reaks like fuel.

My car has 98000 miles.
My car has an automatic transmission.

A: Hi there. From the description you have pro...

Hi there. From the description you have provided, your vehicle's exhaust leak on the driver's side has caused several issues for you. Assuming you have followed procedure in replacing your engine's head gaskets and all is correctly reassembled, it could be a leaking (stuck open) fuel injector(s) dumping fuel into the cylinder(s). It also could be excessive fuel pressure caused by a faulty fuel pressure regulator which, I believe, on this model, is part of the fuel pump assembly. In either case, a fuel pressure test could confirm the fault. It could be other component(s) that have failed and may be identified by accessing the computer for parameter information. I recommend having your vehicle's engine flooded with fuel and misfires like crazy be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

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・Save up to 30%

Get a quote

What others are asking

Q: Car doesnt turn smell gas and explosion like noise from under hood

You need a mechanic to come and check the vehicle to see if the fuel system is leaking onto or into the engine causing the problem. The loud explosion sound may be backfiring and will need to be checked to...

Q: car wobbles at complete stop.. engine shuts off when i accelerate from the stop

It sounds like you may have a severe misfire. It may be caused by many things including ignition system components, fuel system components, or even failing sensors on the motor. I suggest that you have a certified technician, like one...

Q: My truck squeaks on the right side when driving. Always when driving over bumps 2004 Dodge Ram 1500

Hi - suspension noises like your squeak are challenging at best. And, your truck uses torsion bars for suspending the weight of the front end rather than coil springs. This introduces additional bushings which seem to squeak more than they...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...