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Lost of power and overheats

Tiny
DAVAUGHN DUGGINS
  • MEMBER
  • 1997 INFINITI Q45
  • V8
  • 2WD
  • AUTOMATIC
  • 151,000 MILES
After I put 87 octane gas in my car, I had lost power of acceleration on highway. Then my car just shut off once I restarted it and it started to overheat. I check reservoir it is still full, but my car does not start and when trying to start it again it makes a clicking noise. Can you tell me what could be the problem?
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Tuesday, September 27th, 2016 AT 9:51 AM

12 Replies

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
Sounds like you have multiple problems and you will need to take in to a shop for proper diagnosis. As for the clicking sound, sounds to me like the starter has failed.
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Tuesday, September 27th, 2016 AT 12:19 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello DAVAUGH,

It does sound like the starter or battery is having problems but you may have overheated it to where the engine is seized up. Did the engine boil over or just run hot? For the engine low power problem check out this guide:

https://www.2carpros.com/articles/engine-has-low-power-output

Please let us know what you find so it will help others.

Best, Ken
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Tuesday, September 27th, 2016 AT 1:34 PM
Tiny
DAVAUGHN DUGGINS
  • MEMBER
  • 6 POSTS
Ok now I got the battery charge and the car not overheating no more but when I start the car all it does just cut right off now when idle the car it stays on then once I take my foot of the gas it cuts right off don't kno why it does that
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Thursday, September 29th, 2016 AT 6:28 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like you have a vacuum leak, here is a guide that will help you

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
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Thursday, September 29th, 2016 AT 7:22 PM
Tiny
DAVAUGHN DUGGINS
  • MEMBER
  • 6 POSTS
Ok but what about the bad gas that cause this confusion every since I use 87 everything happened at once on the highway then car cut off
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Friday, September 30th, 2016 AT 7:09 PM
Tiny
KEN L
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Yes you could have a bad tank of gas, it is rare but it goes happen
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Saturday, October 1st, 2016 AT 10:23 AM
Tiny
DAVAUGHN DUGGINS
  • MEMBER
  • 6 POSTS
Alright I brought new battery because the old one had a bad cell I change the plugs which all the plugs were blown I change the fuel filter because it was alot of dirt inside my car starts good but have no power in acceleration and I here loud clucking noise from the engine sound like the piston slapping but why I don't have power on acceleration I can't go pass 35mph
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Monday, October 3rd, 2016 AT 6:15 PM
Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
Is your check engine light flashing while accelerating? If it is then you have a bad misfire. Have it scanned for codes and do a compression check on that cylinder especially if any of the plugs were wet with fuel when you removed them.
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Monday, October 3rd, 2016 AT 9:19 PM
Tiny
DAVAUGHN DUGGINS
  • MEMBER
  • 6 POSTS
The plugs was wet with fuel when I pull them and no the engine check light does not flash any more but I will try to get a code check
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Monday, October 3rd, 2016 AT 9:41 PM
Tiny
KEN L
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The more I think about it I would say you might have a blown head gasket that would explain the misfire and over heating, here is a guide to help you.

https://www.2carpros.com/articles/head-gasket-blown-test

Please let us know what you find so it will help others.

Best, Ken

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Tuesday, October 4th, 2016 AT 9:16 AM
Tiny
DAVAUGHN DUGGINS
  • MEMBER
  • 6 POSTS
I think this my problem right here a exhaust leak I have cuts and holes in both of my pipes
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Tuesday, October 4th, 2016 AT 1:05 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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That will do it, please repair and get back to us so it will help others

Best, Ken
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Tuesday, October 4th, 2016 AT 2:41 PM

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