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YUGH!!!!!!! by mastercraft83
Started on: 06-05-2008 06:01 PM
Replies: 3
Last post by: mastercraft83 on 06-05-2008 09:57 PM
mastercraft83
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Report this Post06-05-2008 06:01 PM Click Here to See the Profile for mastercraft83Click Here to Email mastercraft83Send a Private Message to mastercraft83Direct Link to This Post
ok seems that I have gotten thingssomewhat back to normal at an idle at first start up.
I begin to drive and all is well then after about 5 mins or so of 50 mph driving it starts to buck pull up to a stop and dies starts right up
but need to give it some gas then let out the clutch and go seems that when I am giving it gas it somewhat smooths out but if I try to cruise around 30 or so bucks no power missing or should I say coughing. fuel filter maybe the thing is when I first start it (open loop)
plenty of power runs great but after a bit(closed loop) I have YUGH!!!!!!!!

Hope someone can shed some light
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Dodgerunner
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Report this Post06-05-2008 08:21 PM Click Here to See the Profile for DodgerunnerClick Here to visit Dodgerunner's HomePageClick Here to Email DodgerunnerSend a Private Message to DodgerunnerDirect Link to This Post
4 or 6 cyl. ?

1. Check your fuel pressure. Needs to be 9-12 on the 4 or around 40 on the 6. Easier to check on the 6 since there is a tap. 4 you have to splice in the gauge. Could be a bad pump or split hose in the tank.

2. Possible plugged cat. knock on it with a rubber hammer and see if has lots or rattles inside.

3. Bad map sensor.

4. Bad ing. module depending on the year.
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Icelander
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Report this Post06-05-2008 08:28 PM Click Here to See the Profile for IcelanderClick Here to Email IcelanderSend a Private Message to IcelanderDirect Link to This Post
My 2M4 had similar problems... Turned out to be a bad coil and a bad plug wire.

My recommendation would be to start out with a new fuel filter, check your coil at the local auto parts store (or at home if you've got the specs), and progress to the more elaborate and expensive stuff. I started out by replacing the injector, the ignition module, etc... I finally took it to a mechanic and was told it was the coil... Now I try to think of the most basic stuff first so I'm not shelling out big money for a cheap and simple fix.

Hope you find it.

------------------
Kendall (Icelander) Whitlatch
'85 Fiero 2M4 - 5spd Isuzu
'67 LeMans/GTO clone 6.5 litre TH400
All the rest aren't Pontiacs, so what does it matter?

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mastercraft83
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Report this Post06-05-2008 09:57 PM Click Here to See the Profile for mastercraft83Click Here to Email mastercraft83Send a Private Message to mastercraft83Direct Link to This Post
Im sorry it is a 2.8 curious tho with it running so good for the first 5 or 10 mins then show all of these symptons
if the fuel pump is bad isnt it bad or are u thinking weak?
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