Replaced fuel filter then rondo does not start - Kia Forum

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post #1 of 7 (permalink) Old 07-09-2016, 11:16 PM Thread Starter
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Replaced fuel filter then rondo does not start

Hi all,

beginning of the year, my rondo had subtle hesitation between 10 to 35 mph but to problem with acceleration. About a month ago, the car started to crank more when starting; may be 3 sec instead of 1-2. It`s getting at the 100000 mile mark and 8 years old so spark plug and timing belt are about do be changed (timing belt was change after 4 years for the first time) and fuel tank air filter and fuel filter were never change. So, I tried to take care of the last two this week end.

The fuel tank air filter replacement went fine and I painted the undercarriage and spare at the same time due to rust. Next, the fuel filter. Definitely more complicated than my former Corolla 1987 which took me 2 min. to swap. Anyway, got to it with the shop manual as the instruction;
Then to release the internal pressure I followed that;
RELEASE THE INTERNAL PRESSURE
1. Disconnect the fuel pump connector (A).
2. Start the engine and wait until fuel in fuel line is exhausted. In that case the rondo ran for may be 2 sec. then stalled.

I removed the assembly from the tank then took it apart. It took me sometimes to figure that I had to pry to filter up and not just pushing the holder down while pressing the holding pins outward. As for cjfin, there was some black small carbon particles in the holder. I washed the holder and bottom pre-filter with fresh gas then put the whole thing back together dry and put the assembly back in the tank. I put the plate cover (barely tight) and reconnected everything back then cranked; nothing

The tank was almost empty so I filled it to just above the 1/2 mark. I tried to start but nothing. I disconnected the feed tube quick-connector but no gas was present unlike the first time i disconnected it. I put the hose back then open turn on the key about 20 times before cranking; nothing. Checked the hose again; no gas. Took the filter assembly apart again; holder has about 2 inches of gas, fuel filter is filled with gas and the feeding tube was partially filled.

I put the assembly back in the tank but did not try to crank because it was late so I will try tomorrow.

Is the fuel pump bad? Do I have to turn on/off the key more then 20 times?

THanks

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post #2 of 7 (permalink) Old 07-10-2016, 06:36 PM
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Quote:
Originally Posted by gnorin View Post
Hi all,

beginning of the year, my rondo had subtle hesitation between 10 to 35 mph but to problem with acceleration. About a month ago, the car started to crank more when starting; may be 3 sec instead of 1-2. It`s getting at the 100000 mile mark and 8 years old so spark plug and timing belt are about do be changed (timing belt was change after 4 years for the first time) and fuel tank air filter and fuel filter were never change. So, I tried to take care of the last two this week end.

The fuel tank air filter replacement went fine and I painted the undercarriage and spare at the same time due to rust. Next, the fuel filter. Definitely more complicated than my former Corolla 1987 which took me 2 min. to swap. Anyway, got to it with the shop manual as the instruction;
Then to release the internal pressure I followed that;
RELEASE THE INTERNAL PRESSURE
1. Disconnect the fuel pump connector (A).
2. Start the engine and wait until fuel in fuel line is exhausted. In that case the rondo ran for may be 2 sec. then stalled.

I removed the assembly from the tank then took it apart. It took me sometimes to figure that I had to pry to filter up and not just pushing the holder down while pressing the holding pins outward. As for cjfin, there was some black small carbon particles in the holder. I washed the holder and bottom pre-filter with fresh gas then put the whole thing back together dry and put the assembly back in the tank. I put the plate cover (barely tight) and reconnected everything back then cranked; nothing

The tank was almost empty so I filled it to just above the 1/2 mark. I tried to start but nothing. I disconnected the feed tube quick-connector but no gas was present unlike the first time i disconnected it. I put the hose back then open turn on the key about 20 times before cranking; nothing. Checked the hose again; no gas. Took the filter assembly apart again; holder has about 2 inches of gas, fuel filter is filled with gas and the feeding tube was partially filled.

I put the assembly back in the tank but did not try to crank because it was late so I will try tomorrow.

Is the fuel pump bad? Do I have to turn on/off the key more then 20 times?

THanks
I've changed my fuel filter several times and never had to crank more than a few seconds for it to fire up after.
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post #3 of 7 (permalink) Old 07-10-2016, 09:40 PM Thread Starter
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Thanks cfin, may be I waited to long before changing that filter and I killed the fuel pump. I just found weird it would die at the same time I change the filter. I don`t think a screwed up the assembly. I took it apart twice to make sure i did not miss anything.
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post #4 of 7 (permalink) Old 07-11-2016, 02:53 PM
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Quote:
Originally Posted by gnorin View Post
Thanks cfin, may be I waited to long before changing that filter and I killed the fuel pump. I just found weird it would die at the same time I change the filter. I don`t think a screwed up the assembly. I took it apart twice to make sure i did not miss anything.
Yeah, that would be quite a coincidence for the pump to pack it in at the same time. Maybe the pickup tube got plugged somehow? Or maybe the fuel pump relay isn't working? You've probably already checked those things so I'm just guessing at this point. I really dislike how the pump/filter/sending unit assembly seems so fragile and has so many connections to deal with in order to change the filter every two years or 56k km. I'd like for Kia to come up with a reasonable explanation as to why they can't put the filter outside the tank.

Having said that, I've never had any big problems changing out the filter. It's just a pain. Please post back when you find out the problem.
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post #5 of 7 (permalink) Old 04-09-2017, 11:53 AM
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Had the same no start after putting in a Beck Arnley, so i checked a few other posts. The tall corrugated O ring that the fuel pump actually sticks up in did not come with the new filter so i had to pull the one out of the old filter. Just turn the old filter over and look up inside it, the O ring is up inside the rectangle shaped protrusion on the top of the filter. You will know what i mean when you see it. i noticed the new filter was a little loose initially. Had to pull everything apart to do it but in a few seconds of cranking the rondo started right up.
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post #6 of 7 (permalink) Old 04-13-2017, 08:14 AM
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the 2007 Rondo started three times and sat and ran. Later that day it wont start. The outlet hose from the fuel filter is cracked on two of the clips so does not appear to hold straight and snug. Hard to tell once the whole thing is pushed back down in to the tank.Could the problem be that not all the fuel is being pushed down the fuel line to the engine?
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post #7 of 7 (permalink) Old 04-14-2017, 07:51 AM
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I took the fuel tank back open to get at the fuel pump assembly and put a simple hose clamp around the cracked connector where the S shaped fuel line connects to the fuel filter and snugged it down. This stabilizes it and allows the O ring inside the connecter to be held in place. Now all the fuel gets pumped to the engine and the fuel system is maintaining pressure . The car started right up with no cranking. The connector was cracked when I opened it up originally to replace the fuel filter. I think the pressure from the S shaped fuel line and the spring load on it is too much for the thin plastic clips and they just give out over time.
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