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Loss of power, hesitation, jerking, shuttering around 60mph

 
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Old 11-23-2010, 04:15 PM
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Loss of power, hesitation, jerking, shuttering around 60mph

Yesterday, I was driving in the heavy rain and the prelude (96 S - f22 engine) started doing this weird thing. After I keep the gas pedal pressed down for 4-5 seconds, it starts hesitating or convulsing. I let the pedal go and it press down and it's fine for the next 4-5 seconds. I thought I was hydroplaning or something like that but when I was driving today, it was doing the same thing.

I also noticed a loss of power, like I was in 4th gear while I was driving in 5th gear.

I have no CEL. Idles around 0.7 or so.

What could be the problem? Ignition - I haven't changed spark plugs since I got the car, could bad spark plugs cause this? Or was it something with the intake or fuel since I was cleaning the air intake last weekend because of a sticky pedal?
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Old 11-23-2010, 04:18 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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Old 11-23-2010, 05:59 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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He would no doubt have a cel for that, it's a '96 (OBDII).

I would check plugs, wires, cap and rotor...normal tune up stuff if you haven't done it since you've owned the car. Start cheap.
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Old 11-23-2010, 06:15 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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Originally Posted by jkoni426 View Post
He would no doubt have a cel for that, it's a '96 (OBDII).

I would check plugs, wires, cap and rotor...normal tune up stuff if you haven't done it since you've owned the car. Start cheap.
Waste your time and do what he says
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Old 11-23-2010, 06:18 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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Originally Posted by jkoni426 View Post
I would check plugs, wires, cap and rotor...normal tune up stuff if you haven't done it since you've owned the car. Start cheap.
I concur with this. Same thing happened to me and it was a loose set nut in the distributor rotor.
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Old 11-23-2010, 06:23 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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Originally Posted by Brandonjay_1983 View Post
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I did replace my exhaust after the cat a month ago. Maybe I messed up something after I had to use a torch to get the bolts out.

I will take the cat O2 sensor and see if that improves performance. That should tell me if the cat is blocked right?
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Old 11-23-2010, 06:33 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

just put the car up and bang on the cat, if anything rattles in the cat then its bad. but i would assume you would have a cel for this. taking out the post o2 sensor will do nothing but throw a cel.

check plugs, wires, cap, rotor, and the map sensor.
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Old 11-23-2010, 06:46 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

Does it do this at lower gears near the same RPM range?
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Old 11-23-2010, 07:55 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

this also happens if your distributor is bad
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Old 11-24-2010, 01:20 AM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

ok .iam going to chime in .The problem your having ,could be a number of things that would not triger cell,like bad fuel pressure ,cam sensor,crank sensor,knock sensor,bad dissy,bad eccu ,intake gasket,most of these need some trouble shooting,with ohms or volts meter,keep posting ,hope this helps for know.
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Old 11-24-2010, 08:57 AM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

dose it get worse and worse the higher gear ( the more load you put on it ) ?
if so im gonna have to go with ignition . when the ignition modules / coil start to go bad they will do this and it will get worse and worse the more you drive if it dose it in 5th at say 65 then you down shift to 4th and it stops i promise its ignition related ...
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Old 11-24-2010, 11:48 AM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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Originally Posted by M0B5TA View Post
this also happens if your distributor is bad
X2! When I had the loose debris in my rotor, it damaged the internals of the distributor and I was getting hesitation during acceleration. Had to get a new distributor...all fixed now!
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Old 11-27-2010, 11:41 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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Originally Posted by Brandonjay_1983 View Post
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i agree 3000%, my sister has a 94 (i think) and she has to take it to the shop tomorrow to have another one put on. the other day while i was with her it was jerking, losing power etc. well i told her it may be the fuel or spark plugs, wires, distributor, well after i looked at all that i drove it, wouldnt even go over 15 mph, it was smoking, i thought well must be a fuel issue, nope, i got out, looked under the car and the whole exhaust was cherry red, i knew right then what it was.
drive it a while and park and look at the cat, if its red then you have an answer...

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Old 11-29-2010, 09:54 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

Quote:
Originally Posted by jkoni426 View Post
He would no doubt have a cel for that, it's a '96 (OBDII).

I would check plugs, wires, cap and rotor...normal tune up stuff if you haven't done it since you've owned the car. Start cheap.
I sanded down the distributor cap points and the rotor part, put in new spark plugs and then put newish spark plug wires (I found some NKGs at the junkyard for an accord).

The above boosted my power and I have been able to drive it around in the freeway but it still feels like it's losing power on the freeway. If I hit the gas hard enough I momentarily get my old lude back where it didn't feel so sluggish but then it's gone.

I'm thinking it's the fuel filter that needs replacing. I haven't replaced that part since I got it so maybe that's clogged up. I think the injectors probably also need cleaning since I've been driving with a clogged fuel filter. I've had this problem of sticky gas throttle for a while and my friend was saying he believed that it was the fuel filter that was clogged up, then went into bypass mode and let a lot of gunk into the injectors. I think over time my throttle and injectors got covered in gunk that the fuel filter wasn't filtering. So now the fuel is having trouble getting the pressure it wants.

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Originally Posted by HypnoFish View Post
just put the car up and bang on the cat, if anything rattles in the cat then its bad. but i would assume you would have a cel for this. taking out the post o2 sensor will do nothing but throw a cel.

check plugs, wires, cap, rotor, and the map sensor.
I took a plastic mallet and banged the cat and there was no sound. For the heck of it, I did remove the O2 sensor and drive it around and there was no change.

After driving, I felt around under the car and the whole exhaust was hot not just the cat. But, the part after the cat was a bit cooler than the cat. So, I don't think the cat is clogged up enough to cause my problem.

Quote:
Originally Posted by Banchi94 View Post
I concur with this. Same thing happened to me and it was a loose set nut in the distributor rotor.
I think my rotor is pretty tight in there. Actually, I was at the junkyard and was trying to get the rotor off the distributor there and I broke the rotor in two. So, I got a little scared wiggling things in my distributor but I just sanded the connector on the rotor.

Quote:
Originally Posted by JohnL114 View Post
ok .iam going to chime in .The problem your having ,could be a number of things that would not triger cell,like bad fuel pressure ,cam sensor,crank sensor,knock sensor,bad dissy,bad eccu ,intake gasket,most of these need some trouble shooting,with ohms or volts meter,keep posting ,hope this helps for know.
Is there a CEL for fuel pressure? Today I was about to drive off and all of a sudden there was no response to pressing the gas pedal. Then, I turned off the car and started again and the gas pedal was working again. I think a lot of those throw out a CEL but the puzzling thing is that there is no CEL.

Quote:
Originally Posted by element600rr View Post
dose it get worse and worse the higher gear ( the more load you put on it ) ?
if so im gonna have to go with ignition . when the ignition modules / coil start to go bad they will do this and it will get worse and worse the more you drive if it dose it in 5th at say 65 then you down shift to 4th and it stops i promise its ignition related ...
In the manual it says to check if the ignition coil is going bad, check the resistance between the various points. Everything checks out except for the 16-20 kOhm ends which only shows up as 2-3 kOhm in my multimeter. It is colder than the temperature given in the manual and I don't know how accurate my multimeters are in reading kOhm resistances. All other parts of the ignition have been replaced or checks out.

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Originally Posted by benbailey84 View Post
i agree 3000%, my sister has a 94 (i think) and she has to take it to the shop tomorrow to have another one put on. the other day while i was with her it was jerking, losing power etc. well i told her it may be the fuel or spark plugs, wires, distributor, well after i looked at all that i drove it, wouldnt even go over 15 mph, it was smoking, i thought well must be a fuel issue, nope, i got out, looked under the car and the whole exhaust was cherry red, i knew right then what it was.
drive it a while and park and look at the cat, if its red then you have an answer...
I drove around for a while and then looked under my car (at night). There was no glow. I think it has to be around 700 degree farenheit for metal to glow red. I even touched it with my glove and it wasn't too bad. It's cold here in Michigan but yeah it would still show up if the cat was clogged I think.

Last edited by mr0x; 11-29-2010 at 10:20 PM.
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Old 11-29-2010, 10:40 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

where in michigan are you located?
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Old 11-29-2010, 10:46 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

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where in michigan are you located?
Around Detroit. I work in Detroit but live around 10 mile and Woodward.
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Old 11-30-2010, 12:33 AM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

I think LudeLove99 is also having similar issues (he has a fifth gen) here ->
h22 loses power at high RPM's?

Next step for me is to check fuel pressure, change fuel filter and go on from there. Maybe the fuel pump is bad? I think my symptoms match failing fuel pump symptoms.

They're selling brand new fuel pumps for $30 on eBay. So, it won't be so bad hopefully to replace.

Maybe also clean injectors, hopefully not have to replace them.

I won't be able to work on the lude for at least a week. Hopefully it's not all snowed up or too cold to work on the lude then.
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Old 12-18-2010, 10:22 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

I think I have figured out the problem in my car. I think it's the upstream O2 sensor.

I have tried fuel system, PCV and vaccum systems and was thinking it's the valves were worn or that the fuel was burning in the manifold and cat since I heard some backfire the other day.

Anyway, got an ELM327 USB to check on live data since my car is a 96 and has OBD-II. It gives MAP, coolant temperature, TP sensor info so I knew they were working fine. It seems that the lude doesn't support the O2 sensor test mode but does provide the live data for the upstream and downstream O2 sensor voltage reading.

The upstream was stuck on 1.25V (should be between 0 and 1 but I don't know why it's stuck at 1.25V). Five years ago I had hired a mechanic from craigslist to do some repairs and he changed my O2 sensor with the Bosch smartlink O2 sensor and got the wires mixed up. I had recently corrected this and the CEL went away but apparently the sensor died shortly afterwards.

Anyway, I unplugged my upstream O2 sensor connector and got my old car back with the light throttle and power.

Still all this doesn't really make sense to me. The fuel system should be open and shouldn't be mattering. The car always started feeling heavy and sluggish. Should be an CEL if the readings go out of range or was stuck.

Anyone have similar experiences?
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Old 12-18-2010, 10:35 PM
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Re: Loss of power, hesitation, jerking, shuttering around 60mph

That's good detective work there. Glad you got it figured out. Threads like this help me a lot learning about what to look for when things like this happen.
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