Surging @ highway speeds

[Brian P]

that's a bitch. keep us updated.

[90Cutlass3.1]

Had the ICM tested 4 times and it tested good each time. Spliced the bare wires and that all looks good. From my wiring diagram I think it was the wires going to the CPS. Pulled the fuse to the ECM and did the idle relearn. Haven`t had a chance to take it our for a drive yet to see how it does.

Friend of mine put his scanner on it and came up with a bad coolant temp sensor so gonna replace that. Can anyone give me some tips on where to find that, and how to go about replacing it? Engine is a 3.1 MPFI.

Also gonna replace the trans filter and fluid, got a pretty bad trans fluid leak that seems to be coming from around the pan gasket.

[Night Fury]

Well of course it's a 3.1

[Addicted To Boost]

The coolant temp sensor is on the backside of the thermostat housing. Remove the old one and install the new one.

[90Cutlass3.1]

The coolant temp sensor is on the backside of the thermostat housing. Remove the old one and install the new one.

Thanks Nick,Prob never would have found it without your help. Replaced the CTS and spliced a new pigtail to it while I was there.. the previous owner had broken the plastic housing off the CTS that the plug plugs into and had the connecter held in place with a small piece of copper wire LOL....talk about your McGuyver fix ohhhh man....Got the ICM back on and the bare wire spliced and taped up good. I believe that it was the bare wires that were causing it to surge at highway speeds.Seems to be running tip top now.Thanks to all for the help and tips.

[Night Fury]

3.1+running 'tip-top'=not possible

[ManicMechanic]

Now Buck...Don't be bitter (like me...lol)

[Night Fury]

BITTER?!?!? YOU CALL THIS BITTER?!??!

[ManicMechanic]

BITTER?!?!? YOU CALL THIS BITTER?!??!

 

There, there...

[Night Fury]

<3 you!

[90Cutlass3.1]

Ok well how about as tip-top as a 3.1 can run

 

[Night Fury]

I'd hardly call it tip-top to begin with!

[Addicted To Boost]

3.1+running 'tip-top'=not possible

Bullshit.

 

Glad you got her runnin good 90CS

[rockfangd]

i dont dare say how good my cutlass is unning right now otherwise i will surely regret it tomorrow

[ManicMechanic]

i dont dare say how good my cutlass is unning right now otherwise i will surely regret it tomorrow

 

I know EXACTLY how you feel!

[Lumineer]

I thought MY 3.1 ran hard and strong (and it mostly does...for a 3.1), but an shop said they noticed my car was running a little rough and suggested some work on the air induction system.

[Night Fury]

i dont dare say how good my cutlass is unning right now otherwise i will surely regret it tomorrow

 

I know EXACTLY how you feel!

 

QFMFT!!

[rockfangd]

last time i said my cutlass was running wonderful the fuel pump took a shit the next day and fixed that problem lol. The green money pot is still hungry lolol

[90Cutlass3.1]

i dont dare say how good my cutlass is unning right now otherwise i will surely regret it tomorrow

last time i said my cutlass was running wonderful the fuel pump took a shit the next day and fixed that problem lol. The green money pot is still hungry lolol

Well you said it would happen. Since I said it was running good *and still is* I had a deer jump into me the other day going to work. Not to bad though, nothing that a right fender, side marker light and a bit of work on the hood won`t fix. I`ll post a pic as soon as I can get one taken,Drove it to work the next day and on the way home the altenator decides to give it up!