Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: Engine and Powertrain
- Honda Accord: Why is my car hesitating?
Guide to diagnose touble and recommended solutions.
Browse all: Engine and Powertrain
Hesitation on acceleration, rpm slugs and catches up..
#26
Honda-Tech Member
Join Date: Dec 2005
Location: cincy,oh
Posts: 699
Likes: 0
Received 0 Likes
on
0 Posts
Re: Hesitation on acceleration, rpm slugs and catches up..
jus me but i could be wrong, but if u checked everything and it still doesnt work, it jus sounds like ur intake cam is off a tooth or 2 since it hesitates at low rpm then jumps back up normally
#27
Honda-Tech Member
Join Date: Jun 2008
Location: Ohio
Posts: 1,374
Likes: 0
Received 0 Likes
on
0 Posts
Re: Hesitation on acceleration, rpm slugs and catches up..
Back to your problem, I'm experiencing the same exact thing on my d15, right now my leading culprit is a vacuum leak. Had you done any work on the car around the time it started doing this, or did it just happen?
#29
Honda-Tech Member
Thread Starter
Re: Hesitation on acceleration, rpm slugs and catches up..
bump. 60 days later.
I was having battery/alt trouble, i replaced both. They aren't the problem.
I have the timing set like this and the car runs (idles a little low, almost stalls when shifting)
it does the slight hesitation i've described in this thread.
when i set the timing normal to center, the car runs, idles even lower (barely seems to run) and seems rough like it's missing.
i'm going to go pull plugs, take pics of them. wires are new. will inspect cap and rotor and post pics. will check that all injectors are operating.
will try to borrow timing light to set timing perfectly/check it.
I'm like 99% sure timing is right w/TDC cuz i checked it 4 times.
look at this picture
A = arrow on oil pump on block
B = little nick on crankshaft pulley corresponds to oil pump arrow
C = other nick on crankshaft pulley corresponds to plastic gun-sight on plastic timing belt cover.....
AAAAND MY QUESTION
- the marks on the camshaft pulleys, are they straight up, like 90degrees from the street, or are they up in relation to the head angle.... cuz the motor isn't in the car perfectly level, it tilts forward. the difference is one tooth on the gears... could be it.
I was having battery/alt trouble, i replaced both. They aren't the problem.
I have the timing set like this and the car runs (idles a little low, almost stalls when shifting)
it does the slight hesitation i've described in this thread.
when i set the timing normal to center, the car runs, idles even lower (barely seems to run) and seems rough like it's missing.
i'm going to go pull plugs, take pics of them. wires are new. will inspect cap and rotor and post pics. will check that all injectors are operating.
will try to borrow timing light to set timing perfectly/check it.
I'm like 99% sure timing is right w/TDC cuz i checked it 4 times.
look at this picture
A = arrow on oil pump on block
B = little nick on crankshaft pulley corresponds to oil pump arrow
C = other nick on crankshaft pulley corresponds to plastic gun-sight on plastic timing belt cover.....
AAAAND MY QUESTION
- the marks on the camshaft pulleys, are they straight up, like 90degrees from the street, or are they up in relation to the head angle.... cuz the motor isn't in the car perfectly level, it tilts forward. the difference is one tooth on the gears... could be it.
#31
Honda-Tech Member
Thread Starter
Re: Hesitation on acceleration, rpm slugs and catches up..
never rule somethin out til you know for sure.
there's always somethin you're overlookin.
BUMMMMMMP
there's always somethin you're overlookin.
BUMMMMMMP
#32
Re: Hesitation on acceleration, rpm slugs and catches up..
i am having the same issue, have you checked your fpr? someone just told me it could be my problem. i don't know exactly how to check it.
#33
Honda-Tech Member
Join Date: Apr 2011
Location: Southern Pines, NC
Posts: 75
Likes: 0
Received 0 Likes
on
0 Posts
Re: Hesitation on acceleration, rpm slugs and catches up..
I had a terrible hesitation problem. Still dont know if its fixed. My car did not have any power until about 3500 rpm. I was testing the fuel system today. How i tested my fpr was to remove the fuel rail with the injectors intact after i checked the timing.
What happened was i found that i have fuel pressure going thru the rail but when i turned the key to accessory.. it blew out a fuel injector. Swapped that injector with another one. It was the one on no3 and switched it with no4. The same one blew out. Switched no4 with no2. Blew out again.
Ordered 4 new fuel injectors from advance for $202 and will have them tomorrow. Hoping this solves most of my problem. Also having my valve cover sandblasted and powder coated deep red transparent. Cant wait to have the finished product and a non hesitant motor.
Also ordering a full exhaust from ebay to be cheap cause the owner before me had a crappy custom made exhaust with a glasspack and a pacesetter muffler that was not welded or clamped on. Just set on. It came off during a test drive and luckily it was on a dirt road or it would have done some major damage to my rear bumper.
What happened was i found that i have fuel pressure going thru the rail but when i turned the key to accessory.. it blew out a fuel injector. Swapped that injector with another one. It was the one on no3 and switched it with no4. The same one blew out. Switched no4 with no2. Blew out again.
Ordered 4 new fuel injectors from advance for $202 and will have them tomorrow. Hoping this solves most of my problem. Also having my valve cover sandblasted and powder coated deep red transparent. Cant wait to have the finished product and a non hesitant motor.
Also ordering a full exhaust from ebay to be cheap cause the owner before me had a crappy custom made exhaust with a glasspack and a pacesetter muffler that was not welded or clamped on. Just set on. It came off during a test drive and luckily it was on a dirt road or it would have done some major damage to my rear bumper.
#34
Re: Hesitation on acceleration, rpm slugs and catches up..
dannggg i been looking forever for this thread.. or one like it lol my car been doin this for like over a month now. whats the best and easiest way to check the vacuum leak? that video was kinda iffy.. i dont have that stuff handy..
#35
Honda-Tech Member
Thread Starter
Re: Hesitation on acceleration, rpm slugs and catches up..
just a followup.
cuz peeps are still havin problems.
my timing (mechanical) was off a tooth. fixed it, dizzy set back to center, car runs perfectly.
can't drive and feel the power of my new b20v yet, cuz i have an oil leak problem to fix first buuuuuutttt
TDC is not TOP dead center. I checked timing 4 times, always with a level, setting the up mark on cam gears STRAIGHT UP.
see the motor doesn't sit in the car level, it tilts forward on the mounts. TDC is TOP of the motor, tilted forward. so check you timing off the DECK OF THE HEAD, not straight up level vertical.
catch ma drift? best of luck
cuz peeps are still havin problems.
my timing (mechanical) was off a tooth. fixed it, dizzy set back to center, car runs perfectly.
can't drive and feel the power of my new b20v yet, cuz i have an oil leak problem to fix first buuuuuutttt
TDC is not TOP dead center. I checked timing 4 times, always with a level, setting the up mark on cam gears STRAIGHT UP.
see the motor doesn't sit in the car level, it tilts forward on the mounts. TDC is TOP of the motor, tilted forward. so check you timing off the DECK OF THE HEAD, not straight up level vertical.
catch ma drift? best of luck
#37
Re: Hesitation on acceleration, rpm slugs and catches up..
Can the timing go off from just driving normal? Cus one morning I was driving and it was fine then later that day it started stuttering out of no where. Feels normal for the most part except when trying to press on the gas as im driving it doesnt pick up n go like it used to. Like just a slow response n then bogs as it tries to go. I was thinkin vacuum leak or maybe but I didnt feel anything, maybe fuel pressure regulator, the fuel filter is new n just installed. Possible for the fpr to go bad and cause this?
#40
Honda-Tech Member
Thread Starter
Re: Hesitation on acceleration, rpm slugs and catches up..
What did u get evicted for ?
his girlfriend has never liked me tho >.<
atleast she thinks i 'spilled a beer'
#41
Re: Hesitation on acceleration, rpm slugs and catches up..
Hey not sure how else to explain this, buuuut...
you're accelerating in first gear, the car hesitates. it's like someone is letting off the throttle a little, then it seems to catch and pull ahead. it's pretty minimal but definitely noticeable.
after about 4500rpm, it seems to be a smooth powerband.
below that, the tachometer needle kinda hesitates and jumps up as the car accelerates and balks. it's smoothly rising, then stops, car slows ever so slightly, then the needle jumps like a second hand on a clock then it repeats.
any ideas? things to try?
you're accelerating in first gear, the car hesitates. it's like someone is letting off the throttle a little, then it seems to catch and pull ahead. it's pretty minimal but definitely noticeable.
after about 4500rpm, it seems to be a smooth powerband.
below that, the tachometer needle kinda hesitates and jumps up as the car accelerates and balks. it's smoothly rising, then stops, car slows ever so slightly, then the needle jumps like a second hand on a clock then it repeats.
any ideas? things to try?
Hey I know this post is kind a hold I was just wondering if you figured out the source of the problem I have a 2000 civic SI stock B 16 I just rebuilt the motor about 1000 miles ago and after the rebuild I know this that's very sluggish from 2000 to about 5000 RPMs there is no hesitation if I accelerate slowly but if I punch it say in first gear it almost like it's confused from 2000 to 5000 it almost feels like the clutch is slipping even though it's not it seems to gain power back at about 5000 of them again ivytech at 58 any insight would really help me thank you
#42
Re: Hesitation on acceleration, rpm slugs and catches up..
Well it's an old thread, so I doubt any of these people are still cruising this forum.
Annnnd if you read the second page you would've found that OP's mechanical timing was 1 tooth off. Soooo maybe check your mechanical timing and then ignition timing.
Annnnd if you read the second page you would've found that OP's mechanical timing was 1 tooth off. Soooo maybe check your mechanical timing and then ignition timing.
#43
GDD's Resident Derp
Re: Hesitation on acceleration, rpm slugs and catches up..
You shouldn't just loosen the distributor and mess with timing on your own. That's just foolish. Get it properly adjusted and/or tuned.
When was the last time the rotor/cap were actually replaced? Don't go by something "looking" fine. Depending on driving conditions, you may have to change them more often.
Other areas you could look into are your o2 sensors, PCV valve, and fuel injectors.
When was the last time the rotor/cap were actually replaced? Don't go by something "looking" fine. Depending on driving conditions, you may have to change them more often.
Other areas you could look into are your o2 sensors, PCV valve, and fuel injectors.
And that engine had a hard to read (for me) timing tooth, for the light...
Even if advancing time, don't do it by ear.
#44
Honda-Tech Member
Join Date: Jan 2006
Location: Mid West
Posts: 861
Likes: 0
Received 0 Likes
on
0 Posts
Re: Hesitation on acceleration, rpm slugs and catches up..
At night does you headlights dim at all while the hesitation happens??? if so then replace your ground cables. Just saying because i had a similar issue and that was my fix
Thread
Thread Starter
Forum
Replies
Last Post
2011, 95, accel, accelerating, acceleration, b20z2, car, catch, choking, civic, crv, drag, hesitates, hesitation, honda, motorcycle, started, trouble