Runs kinda weird when cold, hard to explain..... | Ford Escort Owners Association (FEOA)
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Runs kinda weird when cold, hard to explain.....

Discussion in '2nd Gen 1991-1996 1.9L SOHC' started by ErikTheRed, May 14, 2013.

  1. ErikTheRed

    ErikTheRed FEOA Member

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    93 2-dr 5-speed. When the engine is cold, and ONLY when its cold, the engine has a little "hesitation", almost like a random miss. For example, I pull out onto the road and get to 3rd gear and hold it at 2500 rpm, the car will kinda sputter here and there. Its not horrible but I definately feel it. After driving for just a few minutes and the engine warms a bit this issue goes away. I was thinking maybe bad gas so I put in 6 gallons of Chevron supreme and still same issue. Ran some injector cleaner through it too, no change. Plugs and wires are fairly new. I tend not to suspect fuel injectors or fuel pump or ignition coil because the issue goes away when the engine warms up, and I don't see how engine temp would affect any of those parts. Any ideas?
  2. Anomalous

    Anomalous FEOA Donator

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    I had a similar problem with the green wagon, when it was cold it would sputter like there was a miss or something weird but it still ran and once the engine ran for a while it would go away, and the engine would run normal. This was caused by a leaking head gasket. It was a very small leak that got worse over time. It would leak a small amount of coolant into the cylinder when it sat, and once the fluid was burned off it would run fine. Mind you this is a very small amount of fluid. so it may not show up as white smoke out the rear.

    I also had a problem in another escort where instead of fluid it would make noise until it warmed up, this was caused by valve seal getting ready to fail, which it eventually did.

    Hopefully these arent your problems but its the best i can come up with, as far as fixing it, there really isnt anything to can do until you have proof that something failed. which usually means just wait til it craps out and go from there.
  3. ErikTheRed

    ErikTheRed FEOA Member

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    If its a head gasket I think I'll drive it off a cliff and never again own another Ford Escort. I've owned 3 now, and if this issue is related to the head gasket, then all 3 will have had head gasket/valve seat issues. I just got finished putting a new head and gasket on my 94, and thats after the valve seat dropped in my 95.
  4. 2doorLX

    2doorLX FEOA Member

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    Could be an 02 sensor...
  5. Intuit

    Intuit FEOA Member

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    Cracked-head theory can be tested with compression tester. With that problem your coolant would also be fouled.

    Me and a couple of other people are/were currently noticing similar symptoms.

    https://www.feoa.net/threads/surging-in-2nd-gear-from-20mph-to-30mph.81588/
    https://www.feoa.net/threads/computer-replacement.81592/
    With the 80s weather it had all but completely disappeared. Now that it's cooler (60s-70s) it's more noticeable again.

    Noticed this noise came back about 1.5 weeks ago.
    https://www.feoa.net/threads/w-o-t-sucking-sound.80981/#post-719506
    Difference is I haven't yet experienced much issue with cruising which means the leak is still small.

    Guess I'll get out there and check on it before I melt something else; if not already. :whistling:
  6. Intuit

    Intuit FEOA Member

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    Hey. Simple test. Unplug the DPFE sensor harness on the firewall before driving it. (ignore the related "Check Engine" light) Does the problem disappear ?
  7. Benlightnd

    Benlightnd FEOA Donator

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    Sound like an intake manifold gasket leaking. After it gets hot, it swells up and seals. It's related to air / fuel mix or injector pulse timing.
    Could be a flaky coolant temp sensor being out of range and giving the PCM a faulty signal when cold. Air temp sensor could do the same
    but they aren't known for it. My money is on the intake gasket. You can check it by spraying some starting fluid across the gasket area
    when it's cold. IF it's a noticeable leak, it will pick up the starter fluid and the engine will begin to race a bit until it burns the fluid off.
    IF nothing else, just put a wrench on each of the manifold bolts and make sure their tight....

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