It wouldn't excel and when I push on the accelerator it m...

It wouldn't excel and when I push on the accelerator it made this weird sound something flew off the car and then it just had this thumping sound Mechanic's Assistant: Where exactly do you think the noise is coming from? A...

It wouldn't excel and when I push on the accelerator it made this weird sound something flew off the car and then it just had this thumping sound Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? I think it's coming from underneath and it just happened today and now I'm stuck on the side of the road Mechanic's Assistant: What is the make/model/year of your car? 1999 explorer Mechanic's Assistant: Are you fixing your Explorer yourself? What have you tried so far? I haven't tried doing anything so far I just pulled barely pulled off the side of the road and this happened like 15 minutes ago it will run but it will not Excel and it makes it really awful thumping sound Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? I don't think so

Automotive Expert
Howdy from Tennessee, I'm Chris aka Moose. Who am I helping today? I'm glad you've come here to get help. I will do my best to get the answer you are looking for. I help many customers, so sometimes my replies are delayed, I will respond once available. I try to be online at 1-5 pm and 10 pm-5 am every day. Will the [engine](/topics-engine-ford/) still crank and start? Will it idle fine, will it rev up fine in park? Is the check engine light on while running? Are fluid levels fine for the [coolant](/topics-coolant-ford/), engine, and [transmission](/topics-transmission-ford/)? Is the serpentine belt still there and tight?

It cranks over and will drive but it doesn't want to excellerate and it makes a clanking thumping soundSerpentine belt is intact and no fluids are leaking
Automotive Expert
Thanks, Can you tell where under the vehicle the noise is coming from? If you were not listening to the noise, does it drive, steer, and [brake](/topics-brake-ford/) fine?

It sounds sounds like it's coming from underneath the driver's seat it breaks fine it drives fine and it stairs fineI saw something fly out from underneath right before it started making the noiseIt sounds like it's coming from underneath the driver side it drives brakes and steers fineI don't have $27
Automotive Expert
Can you look under the vehicle around the wheels, driveline, and [exhaust](/topics-exhaust-ford/) to see if anything is damaged, missing, hanging down?

Nothing. My boyfriend thinks a manifold gasket
Automotive Expert
Thanks Does it make any noise idling in park or revving the engine or must you be driving? Any way I can get a video of the noise so I can hear it?

It's on a tow truck at the moment but Yes even idleng it thumps
Automotive Expert
Thanks for those details. I feel like the concern is to blame on internal engine damage, maybe a broken cooling fan blade, or a cracked flexplate. Since it occurs in park that rules out the wheels, axles, transfer case, and transmission. Since you can hear something thumping that would indicate something spinning is impacting something else. Thank you for seeking us for help, I hope I provided what was needed. Press reply if you need to follow up. If you liked my answer please let me know so I can mark your question complete. Moose

Thank you for your help. I'm done
Automotive Expert
You are welcome

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