Recent content by PC

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    Intermittent No A/C

    This gets more interesting. Started this morning, engine cold, ambient probably 80F, no A/C, ambient air from vents. As engine came to operating temp. vents blowing full heat, temp control had no effect. No A/C all day, started up this evening, A/C nice and cold. Any ideas? HVAC control...
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    Intermittent No A/C

    2012 Fusion manual hvac intermittent no a/c, clutch not engaged. Most times nice and cold, no pattern, sometimes it works sometime it doesn't. Internet search shows evaporator temp sensor common problem with these Fords. I didn't get any codes either. Is there any way to test this other than...
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    1968 Impala won't start

    Just ran into a similar situation with my 1970 Olds. would start right up then randomly shut off. Hot cold didn't matter but would start right up. Was thinking ignition, so finally changed the condenser and it has run fine past 3 times out. Original coils rarely go bad. Disconnect positive...
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    2001 Chevy Astro Rear Defog Inoperative

    Paulo57509 I think you nailed it. I ripped apart the control head to get to the PCB board, not a easy task. I reflowed the solder point in question, then performed the same bench test and the relay pulled in and the indicator illuminated. The test lamp in the photo was connected to the rear...
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    2001 Chevy Astro Rear Defog Inoperative

    Hmmm, I hadn't thought about the solder points, just that the module is junk judging by others' complaints. I did source one from the online auction site and that one was inoperative as well, so I took a chance on another one and that one is apparently good. Thanks for the suggestions on the...
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    2001 Chevy Astro Rear Defog Inoperative

    Billr, Thanks. I as well can't find that chip anywhere. Second thought was to bypass the timer on the board, would just have to hold the defog button to keep the relay energized. Don't want to wire in a switch as glass and/or circuit can overheat if left on too long.
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    Whistle at highway speed

    Hmm, could a piece of road debris be caught on the chassis somewhere that catches the air just right to make that sound. Could the belly pan, if present, have come loose.
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    2001 Chevy Astro Rear Defog Inoperative

    Bill, Here's a picture of the PCB. I do see a lot of 555 chips, but they seem like RTC timers. The defog timer is probably a decrement counter that counts down to zero from a pre-determined value, I'm guessing 10 min. since that draws a lot of current. With the proliferation of electronic...
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    2001 Chevy Astro Rear Defog Inoperative

    Rear Defogger no longer works, press the button, relay clicks, but doesn't stay on. Fuses on that circuit are good. I understand this is a common problem with the HVAC control unit which is now a unobtanium part. Picked up a used one and it too has the same fault. Tested on the bench and the...
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    2007 Fusion AWD C1234 code

    Well I am cautiously optimistic this is :fixed: as we have gone 2 weeks with no ABS light. Seems it boiled down to air gap between wheel sensor and tone ring AFTER the knuckle/bearing assembly was replaced due to failed bearing. Since that was the last part replaced, it was suspect, so after...
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    2007 Fusion AWD C1234 code

    I agree, much of these electronics do not belong in the environment a vehicle is subject. Drove many vehicles over the years with hydraulic brakes, even a tractor with independent mechanical brakes on drive wheels only with no problems. No ABS. Now all this electronic garbage where the repair...
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    2007 Fusion AWD C1234 code

    Right front bearing was noisy, so we figured it easier to replace bearing/hub/knuckle assembly instead of pressing bearing. After replacement ABS was fine for a few months, now throws that code. The WSS is not integral to the hub, it is separate. BTW, this thing is AWD if that makes a difference.
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    2007 Fusion AWD C1234 code

    Isn't the tone ring, or reluctor on the axle? The axle was not replaced, only hub/bearing/knuckle assembly with Moog LK012 and everything was fine for a few months, now getting a C1234
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    2007 Fusion AWD C1234 code

    Getting C1234, ABS light, TCS light on. checked right front ABS sensor, no damage found. Cleared code, buttoned it up and ABS light stayed off about a month then came on again. Replaced sensor with Motorcraft BRAB-267-AE5Z-2C204-A, cleared code, light off. Came back on within a week...
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    belt chirp,, 1997 ford E150 XLT club wagon 5.4 235K with rear A/C / heat

    Checking alignment is not easy. Had a helper hold the straightedge from the top and from underneath noticed light between the p/s pulley and straightedge.
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