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#1 Old 01-11-2003, 11:03 AM
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Default Engine hesitates when accelerating

My engine is hesitating when I accelerate at lower rpms. I recently change the fuel filter...could it be the sparkplugs or a bad tank of gas??? I just refueled today with higher octane to see if this may have been the case.

Any ideas??? Thanks

99 Accent; 14" Konigs, custom CAI w/ bypass, Front & Rear SR strut bars, Magnacore 8.5mm sparkplug wires, Tenzo Quickshift Knob, OBX Pedals, Magnaflow Exhaust, black hood w/ scoop & hoodpins, dark tint...Still Under Construction.
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#2 Old 01-11-2003, 12:42 PM
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Default Re: Engine hesitates when accelerating

Hesitation problems are probably the most difficult to pin down.

You may be due for new plugs, wires and an air filter. I would try replacing these components if you haven't already. Even if it doesn't correct the problem, you may be due for the replacement anyway.

One of the things I had to replace on my 2000 around 64K miles was the ignition coil assembly. You may also want to check the PCV components and ensure that there are no vacuum leaks.

From http://www.hmaservice.com/webtech/default.asp (Choose your car and click under fuel system, click general, click troubleshooting sections):
TROUBLESHOOTING (Engine Hesitates or Accelerates Poorly)
Case C: Engine hesitates or accelerates poorly (Figure 1)
1 - Check Clutch or Brakes
2 - Check Self Diagnosis
3 - Check Upstream 02 sensor
4 - Check Air Leak
5 - Check Fuel Pressure
6 - Check Injectors
7 - Check Throttle Position Sensor
8 - Check Engine Coolant Temperature Sensor
9 - Check Air Temperature Sensor
10 - Check Mass Air Flow Sensor
11 - Check Knock Sensor (SOHC only)
12 - Check ECM Power Supply and Ground Circuit
13 - Check Fuel Pump and Relay
14 - Try new ECM (ECM may be the cause of a problem, but this is a rare cause)




[Edited by Tugger5000 on Jan 11, 2003 8:56 AM]

[Edited by Tugger5000 on Jan 11, 2003 8:59 AM]

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#3 Old 01-11-2003, 01:40 PM
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Default Re: Engine hesitates when accelerating

Did You change the filter yourself. I have been told alot of people have accidently bent the fuel lines ( not saying that you did). I was gonna change mine but wussed out cause i didn't want to bend the line. Also i didn't tighten the top down on the filter all the way so my car felt alittle doggy.
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#4 Old 01-12-2003, 10:57 PM
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Default Re: Engine hesitates when accelerating

My car did that about a month after I bought it. I brought it in. They changed the plugs and wires on my car and the problem was solved. But my check engine light also was on.

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#5 Old 01-15-2003, 08:25 PM
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Default Re: Engine hesitates when accelerating

I'm thinking that it's the sparkplug wires or the ignition coil pack (which I had to get from the freak'n deal :ermm But anyhow...thanks for all of your help!

99 Accent; 14" Konigs, custom CAI w/ bypass, Front & Rear SR strut bars, Magnacore 8.5mm sparkplug wires, Tenzo Quickshift Knob, OBX Pedals, Magnaflow Exhaust, black hood w/ scoop & hoodpins, dark tint...Still Under Construction.
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#6 Old 01-19-2003, 12:01 PM
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Default Re: Engine hesitates when accelerating

i'm having the same prob, my car is slower overall, as well. i changed all of the above, and it was ok for maybe two days. then it started it again. i think its the maf,cause i brushed it off a bit and it stopped, but started up again. also because i changed the coil, wires plugs and it having stopped, i think it has to be a sensor or connecrtion that leads to the coil pack. although i need to replace all of the sensors. need $ 1st. maf is what, $240? good thing for discounts!! 8D i also noticed that even w/ the new shiznit, its not firing strong, so i guess it has to be the maf, right?

[Edited by 1stgentibs on Jan 19, 2003 8:02 AM]
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#7 Old 01-22-2003, 02:04 PM
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Default Re: Engine hesitates when accelerating

: Got it working again! It was a faulty sparkplug wire!!! That saved me $80 on a new igntion coil pack!!! Damn. Thanks for eveyones help though!!!:smoking:

99 Accent; 14" Konigs, custom CAI w/ bypass, Front & Rear SR strut bars, Magnacore 8.5mm sparkplug wires, Tenzo Quickshift Knob, OBX Pedals, Magnaflow Exhaust, black hood w/ scoop & hoodpins, dark tint...Still Under Construction.
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