motor stuttering at start-up

DarkSideAccord · Jun 24, 2008

Problem:

It has been difficult starting up my car lately, esp from a cold start. It would:
a. have a difficult time starting up
b. if it start up, the motor will stutter and shut off if I don't gas it
c. even if i step on the gas, the motor still feels like it wants to shut off

Background:
I've been having this problem for a while now, but it only feels like tht when I fil up my gas tank COMPLETELY... If I fill up 14 gallons or less, it drives fine... however, it has been happening more lately, regardless of full tank of gas or not. :eh:

Findings:
Some things I have observed:
a. After some driving (constantly revving the motor from shutting off), the car runs perfectly normal
b. I hear the fuel pump when I turn my key to ON position

Conclusion:
a. fuel pump going bad?
b. fuel filter is clogged? don't say it is not serviceable because it can be serviced :darryl:

c. main relay? It has been pretty hot in socal lately....

Any ideas? :thinking:

IcyAccord · Jun 24, 2008

It sounds like fuel pump might be clogged? How about EGR?

Crono139 · Jun 24, 2008

Does your motor turn over, run for a second, stutter and then die (when it acts up, that is)?

Are there any problems when driving the car?

SykVSyx · Jun 24, 2008

Does the sputtering sound kind of like:

"T...t...t.....t.......TURBO......."? :whip_001:

Seriously though, could be a fuel pump issue or EGR as Steve suggested.

AFAccord · Jun 24, 2008

No DTC's?

I think it'd be pretty difficult to clog the fuel filter, unless you possibly stuffed some leaves into the fuel tank. That sock filter has lots of surface area, and a plastic 'frame' to prevent it from sucking flat.

So it's generally only an issue when the car is cold, or restarting it after a fill up?

Dinzdale40 · Jun 24, 2008

silly g23...

njmodi · Jun 24, 2008

Do you smell a lot of gas when on a cold start from the exhaust? When the car is cold, the ECU deliberately runs a rich mixture. It could be a bad coolant temp sensor, leaky injectors, sticking IACV, dirty throttle body, etc. that can cause hard cold starts.

Crono139 · Jun 24, 2008

A sticky gas pedal usually accompanies a dirty TB.

00AccordLX5spd · Jun 24, 2008

Clogged injectors? Crapped out fuel rail?

DarkSideAccord · Jun 24, 2008

IcyAccord said:
It sounds like fuel pump might be clogged? How about EGR?

I have an EGR valve, but it doesn't work cos i disabled it when i went obd1 :lawl:

Crono139 said:
Does your motor turn over, run for a second, stutter and then die (when it acts up, that is)?

Are there any problems when driving the car?

yup, sounds exactly like tht... but after some driving (revving all the way tho so the motor doesn't shut down), it drives like normal.. it even starts up normal as long as i dun leave the car off for too long.... :eh:

damage2000 said:
Does the sputtering sound kind of like:

"T...t...t.....t.......TURBO......."?

Seriously though, could be a fuel pump issue or EGR as Steve suggested.

i wantz teh snailz.... :whip_001:

AFAccord said:
No DTC's?

I think it'd be pretty difficult to clog the fuel filter, unless you possibly stuffed some leaves into the fuel tank. That sock filter has lots of surface area, and a plastic 'frame' to prevent it from sucking flat.

So it's generally only an issue when the car is cold, or restarting it after a fill up?

yes, the fuel filter in our cars are generally difficult to clog, but there are some members who actually had problems with it...

as stated above, it used to be only after a FULL TANK fillup... if i keep it under 14 gallons or less, it is fine.. but last weekend, it just kept doing the stuttering thing :eh:

Dinzdale40 said:
silly g23...

njmodi said:
Do you smell a lot of gas when on a cold start from the exhaust? When the car is cold, the ECU deliberately runs a rich mixture. It could be a bad coolant temp sensor, leaky injectors, sticking IACV, dirty throttle body, etc. that can cause hard cold starts.

i do see a lil more smoke when it stutters.... dun recall any gas smell tho... i'll check on tht later

i cleaned the TB 6 months ago, but nothing on teh other stuff u stated.. i'll check the other things u mentioned