Forums Calendar Active Threads
Previous Thread
Next Thread
Print Thread
Page 3 of 4 1 2 3 4
Re: Hesitation / bucking and code P0402
#1217173 07/28/05 03:41 PM
Joined: Mar 2005
Posts: 28
E
ecallen Offline OP
New CEG\'er
OP Offline
ecallen
New CEG\'er
E
Joined: Mar 2005
Posts: 28
I have never done the suck test nor do I know how to do it. I do have a Haynes manual and Alldata sub though. I will have to look into it.

Thanks!!

Re: Hesitation / bucking and code P0402
#1217174 07/28/05 03:54 PM
Joined: Jun 2005
Posts: 5,345
Virginia, USA
T
Tony2005 Offline
Addicted CEG\'er
Offline
Tony2005
Addicted CEG\'er
T
Joined: Jun 2005
Posts: 5,345
Virginia, USA

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
Re: Hesitation / bucking and code P0402
#1217175 07/28/05 05:07 PM
Joined: Mar 2005
Posts: 28
E
ecallen Offline OP
New CEG\'er
OP Offline
ecallen
New CEG\'er
E
Joined: Mar 2005
Posts: 28
Could the battery / charging system affect acceleration (bucking / stumbling)? I did notice a great deal of corrosion (green / white buildup) on the negative terminal / plate of the battery (I did clean it off) The battery is about 2 years old. I don't know if the corrosion is a common problem or if someting is wrong here too.

Re: Hesitation / bucking and code P0402
#1217176 07/28/05 05:08 PM
Joined: Mar 2005
Posts: 28
E
ecallen Offline OP
New CEG\'er
OP Offline
ecallen
New CEG\'er
E
Joined: Mar 2005
Posts: 28

Re: Hesitation / bucking and code P0402
#1217177 07/29/05 03:49 AM
Joined: Jun 2005
Posts: 5,345
Virginia, USA
T
Tony2005 Offline
Addicted CEG\'er
Offline
Tony2005
Addicted CEG\'er
T
Joined: Jun 2005
Posts: 5,345
Virginia, USA
Originally posted by ecallen:
Could the battery / charging system affect acceleration (bucking / stumbling)? I did notice a great deal of corrosion (green / white buildup) on the negative terminal / plate of the battery (I did clean it off) The battery is about 2 years old. I don't know if the corrosion is a common problem or if someting is wrong here too.



If the battery is dead (or almost dead because the alternator can't charge), yes, it could, but you should get the battery/charge light coming on in your instrument cluster (and that would not be the reason for a P0402). You might as well charge the battery while you are at it. Then put some grease (or anti corrosion) on the terminals. Terminal corrosion can happen to any vehicle/battery (and sometimes within 2 or 3 years old).

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
Re: Hesitation / bucking and code P0402
#1217178 08/03/05 04:13 PM
Joined: Mar 2005
Posts: 28
E
ecallen Offline OP
New CEG\'er
OP Offline
ecallen
New CEG\'er
E
Joined: Mar 2005
Posts: 28
The car is no longer throwing any codes and the battery light is not on but I am getting a intermittnet loss / drain of power (lights, fan, etc) especially when the air, radio, etc is on. The battery light may have come on for a split second with the loss of power.

I am thinking the alternator is going bad but am not sure. How long does it take? / is it hard to replace the alternator on this car?

1998 contour V6 2.5 DOHC

Thanks!

Re: Hesitation / bucking and code P0402
#1217179 08/03/05 04:23 PM
Joined: Jun 2005
Posts: 5,345
Virginia, USA
T
Tony2005 Offline
Addicted CEG\'er
Offline
Tony2005
Addicted CEG\'er
T
Joined: Jun 2005
Posts: 5,345
Virginia, USA
Try the Duratec Maintenance FAQ

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=v6maint&Number=838883&page=&view=&sb=5&o=&fpart=all&vc=1

You may want to check all the wires to the battery and alternator before embarking on the alternator swap.

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
Re: Hesitation / bucking and code P0402
#1217180 08/03/05 06:32 PM
Joined: Jun 2005
Posts: 5,345
Virginia, USA
T
Tony2005 Offline
Addicted CEG\'er
Offline
Tony2005
Addicted CEG\'er
T
Joined: Jun 2005
Posts: 5,345
Virginia, USA
And have you tested the battery and alternator?

This was suggested by Ray when a previous issue with battery or alternator came up.

"....
Measure voltage across the battery terminals at idle.. should be 14.3-14.7 at idle. manually rev the car via the throttle body and see if the voltage drops. It shouldn't.

with the car off, and the surface charge removed from the battey (turn on headlights and interiors for 60 seconds) it should measure 12.0-12.2ish.

If you don't get the charging voltage, either your alternaotr is going out or your megafuse is blown, though a megafuse would cause a light at all times, and NO charge, not slow charging.... "


"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
Re: Hesitation / bucking and code P0402
#1217181 08/11/05 05:53 PM
Joined: Mar 2005
Posts: 28
E
ecallen Offline OP
New CEG\'er
OP Offline
ecallen
New CEG\'er
E
Joined: Mar 2005
Posts: 28
Well, it was the Alternator, at least that fixed the loss of power but I STILL have the hesitation / bucking thing going on. Could this be the coil? The reason I ask is because I just (within 6 months) replaced all wires and plugs. The problem went away after wire / plug replacement but has since returned.

Re: Hesitation / bucking
#1217182 08/11/05 06:33 PM
Joined: Jun 2005
Posts: 5,345
Virginia, USA
T
Tony2005 Offline
Addicted CEG\'er
Offline
Tony2005
Addicted CEG\'er
T
Joined: Jun 2005
Posts: 5,345
Virginia, USA
Originally posted by ecallen:
but I STILL have the hesitation / bucking thing going on. Could this be the coil? The reason I ask is because I just (within 6 months) replaced all wires and plugs. The problem went away after wire / plug replacement but has since returned.



Just for grins, why don't you go check that the plug wires are seated properly and check that they are in the correct position before doing something else.

FIREWALL
4-6-5 <--coil pack
3-2-1

1-2-3 <--engine
4-5-6
BUMPER

Edit. And change the fuel filter if it hasn't been changed in 2 years.

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=v6maint&Number=958655&page=0&view=collapsed&sb=5&o=186&fpart=1

And clean the MAF sensor

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=zetecmaint&Number=991064&Forum=zetecmaint&Words=MAF&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=3months&Main=989728&Search=true#Post991064

http://www.contour.org/mods/mods.php?s=howto&displayid=36

Also clean the IAC valve. The IAC valve cleaning "How to" is within this UIM/LIM "how to"

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=v6maint&Number=931756&page=0&view=collapsed&sb=5&o=186&fpart=1

Last edited by Tony2005; 08/11/05 07:03 PM.
"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
Page 3 of 4 1 2 3 4

Moderated by  horseydug_dup1, Ray_dup1 

Link Copied to Clipboard
Forum Rules · Mark All Read Contact Us · Forum Help · Contour Enthusiasts Group Archives
Powered by UBB.threads™ PHP Forum Software 7.7.5