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My engine hard starting?

Tiny
JYRO58
  • MEMBER
  • 3 POSTS
Thanks my son in law is a mechanic. I just recently bought this vehicle I appreciate your input.
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
JYRO58
  • MEMBER
  • 3 POSTS
Ran a scam and it showed low voltage to MAF.
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Then check for a short in wiring leading to MAF or a bad MAF.
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
NOSTART
  • MEMBER
  • 5 POSTS
  • 2002 HYUNDAI SANTA FE
  • 2.6L
  • V6
  • AWD
  • AUTOMATIC
  • 90,000 MILES
New battery, alternator etc. Normally starts instantly. Today engine turned over for ages but my vehicle did not start. After about twenty minutes and many tries, it finally started. Drove for half an hour turned engine off, it then started easily every time.
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
Check fuel filter for blockage.
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+1
Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try resetting security system on car then check fuel pressure may be a bad pump. auto parts rent gauge.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
NOSTART
  • MEMBER
  • 5 POSTS
Thank you. I tried STP injector cleaner, suv has started many times daily since the original problem. Yesterday it cranked over for 20 minutes and didn't start. Re-occurring problem about once every week or so? Perhaps I'll take it into the garage for analysis.
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,313 POSTS
Is the check engine light on? It sounds like you have a crankshaft angle sensor that is going out intermittently. Please scan for codes, here is a guide that will help you

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let me know what you find

Best, Ken
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
NOSTART
  • MEMBER
  • 5 POSTS
My mechanic scanned the codes, nothing showed up. It's starting again. He suggested when it doesn't start again, have it towed in, then they can troubleshoot.
Thanks for your help
Bob
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,313 POSTS
Please let us know what happens, intermittent problems are hard to find.

Best, Ken
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Monday, January 4th, 2021 AT 1:54 PM (Merged)
Tiny
NOSTART
  • MEMBER
  • 5 POSTS
Hi Ken
My Santa Fe wouldn't start yesterday nor today. I tried resetting the security system. Locking all doors and opening the driver's door with the key. It then started. I cannot locate the tip on resetting the security code, please send it to me again so I can explain to my mechanic.
Thanks again Ken
no start Bob Toronto, Canada
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Monday, January 4th, 2021 AT 1:54 PM (Merged)

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