Royaltyautoservice
Region: US
Thursday 28 May 2026 20:46:01 GMT
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MobileMechanicMikeLLC :
Any kia/ Hyundai with those GDI engines that makes it pass 120 K is literally a miracle
2026-05-28 20:57:56
717
parker27 :
4th engine most likely
2026-05-29 01:15:39
251
Adam Cummins :
that's some impressive diagnosis & explanation
2026-05-28 23:53:25
307
Theedonn :
200k on the 1.6t? That’s good asf
2026-05-29 21:07:08
53
Pharcyde985 :
my 2021 k5 has 145k miles...ZERO issues
2026-06-21 17:13:59
17
Ingalman12 :
while this guy is a good mechanic I think he loves to just teach people and explain the whole process to others you can tell he loves helping people and loves what he does
2026-06-22 04:47:40
20
AJW :
On certain Hyundai/Kia GDI's, be wary of the high pressure fuel pumps leaking into the crankcase as well. I had one in a few weeks ago for a check engine light and the car would misfire on start up (especially cold). Had a code for AFM rich bank 1, so I headed to the fuel trim data and long term was -25% and the short term was -100% at idle (insane). Our shop recently did an oil change and I checked the oil, it was dark and very, very watery looking... also smelled odd. I then pulled the oil fill cap off and it was pure fuel vapors, it was very strong smelling. I eliminated any vacuum leak and EVAP purge as the potential culprits was left with basically the HP fuel pump or leaking injectors (which I suspected), so I endoscoped the cylinders and looked for evidence of the injectors leaking, and didnt see anything despite the piston tops looking very, very wet. Plugs were shockingly not fouled with fuel badly. My last step was recording fuel pressure at idle then immediately after shut off (which was about 550 psi at the rail according to scan tool data), then let it sit and I went to lunch. When I came back, the fuel pressure at the rail was 74 psi. Just to see evidence on the data, I ran the engine with the PCV hose blocked off (the suction side, from the valve cover to the intake) and watched the fuel trims immediately returning to normal. Bingo. Customer ended up approving replacement of the HP fuel pump and an oil change (recommended because the oil was so contaminated with fuel), as well as a tune up (spark plugs due by mileage). Took it for a good, long drive and the car ran beautiful with normal fuel trims once again. Fuel trims seem boring and dull, but once you understand how to use them, they're one of the best data points that modern cars provide.
2026-06-09 02:39:07
5
godfatherlove12345 :
So I don’t here eating your words I have one of those. Zero issues ZERO I have 80k
2026-05-28 22:22:36
22
jason71111 :
It’s had 8 engines
2026-06-21 22:11:22
5
Beachbum Agent :
what code reader / diagnostic device is that?
2026-05-28 22:08:24
6
cole rutzebeck :
Keep in mind this only applies to MAF cars. Speed density cars will measure the extra air and you will have normal fuel trims.
2026-05-29 16:02:23
6
Drake Haney :
As a service director for a Kia outside of Atlanta I’m very pleased with the explanation AND all the comments knowing it’s a fairly common issue. Good video, these k5s are some of the best built. My grandma is driving one for a reason.
2026-07-08 02:45:28
5
Brandon Mcfadden :
Those PCV valves are built into the valve covers themselves, common issue I see on those
2026-05-28 21:49:26
7
. :
We got a Kia forte that comes to my shop with 420k miles 😭😭😭 most I ever seen
2026-05-29 03:02:51
16
Jony.melesio :
Really common issue on those.
2026-05-29 18:41:34
7
Justin Grossman :
The k5 will have the pcv/valve cover issue or the vacuum pump
2026-05-29 23:52:31
7
Tyler :
Love Kia! 2013 Optima Hybrid original owner original engine. 201k miles still going strong. 🤷🏻♂️
2026-05-29 19:13:45
5
Timothy Tenery :
Is this true for a rich condition that corrects itself above idle also?
2026-05-29 03:59:36
8
Blvckehart Tuned :
BMW tuner here, this is very BMW-esque lol. Screams B58
2026-05-28 21:58:33
73
Michael Dore :
same as the GM 1.4L turbo.
2026-05-29 04:19:15
7
Ed Williams :
I’ll tell you what’s wrong, it’s a 5 year old Kia with 200k miles
2026-05-29 16:26:05
22
FERNANDO :
These newer 1.6 smart stream are really good engines especially when paired with the automatic transmission
2026-05-29 04:32:13
11
Xain Sanchez :
great diag! nicely done boys
2026-05-28 21:09:16
32
T.Dubb1 :
Do y’all replace oil filter housings with aluminum Dorman units on Jeeps?
2026-05-28 20:56:25
23
unclecricri :
any other shop would have charged $900. you guys are true gentlemen!
2026-05-29 00:14:50
8
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