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  1. tekrsq

    Oil cooler

    Typically, on these engines, when the oil and coolant are mixing (and you're sure you don't have a cracked head), then it's usually the gasket between the oil filter housing and the block. I had to change mine on my 99 right after I bought it. It wasn't fun, but it's not the worst job I've...
  2. tekrsq

    cigarette lighter power

    Short answer is it's not easy. You basically have to unplug the port from the factory wiring, then install a separate, key activated circuit and connect it to the port. I had this same issue with my 99 when I was trying to install a dash cam. I ended up just buying an install kit for the dash...
  3. tekrsq

    Getting to the GEM

    About 2 yrs ago, I had an electrical gremlin on my 1st gen that I looked for almost 3 months. I weas convinced the GEM was bad, and was even confirmed by a Firestone station. However, the Firestone would not replace the GEM because it had to be programmed by the dealer. When I took my truck to...
  4. tekrsq

    Oil cooler

    What makes you think you need to replace the oil cooler ?
  5. tekrsq

    Intermittent electrical issues

    About 2 yrs ago, I had an electrical gremlin on my 1st gen that I looked for almost 3 months. I weas convinced the GEM was bad, and was even confirmed by a Firestone station. However, the Firestone would not replace the GEM because it had to be programmed by the dealer. When I took my truck...
  6. tekrsq

    Light Sensor Amplifier

    Um..yeah....been doing that, but they don't work. So I need to know exactly how to test those sensors with a DVMM.
  7. tekrsq

    Light Sensor Amplifier

    Does anybody know how to test the light sensor amplifier...and actually the light sensor itself also, on my 99 EB ? I'm still trying to get my auto headlight feature to work, and I have narrowed down the issue to those 2 things, but I can't figure out how to test them.. Apparently neither are...
  8. tekrsq

    99 EB 5.4 intermittent shut down issues

    I thought I updated this thread as SOLVED. I ended up finding a new PCM diode and PCM relay and replaced them both. I have not had the issue since replacing them.
  9. tekrsq

    No crank, no start, 99 EB 5.4

    Is your odometer reading normal, or ---------------- ? My 99 EB was doing the exact same thing, and the odometer had the dashes. Tried a TON of things, but it ended up being either the PCM relay, or the PCM fuse. I don't know which one because I replaced them both at the same time. I forget...
  10. tekrsq

    1998 Eddie Bauer with codes...Where do I start??

    Did you ever figure out the issue ??
  11. tekrsq

    99 Mach stereo subwoofer is 4 ohm

    I saw that, but wasn't looking to go that deep....if I didn't have to. All I needed was the sub. I pulled the CD changer and switched out the head unit almost 10 yrs ago.
  12. tekrsq

    99 Mach stereo subwoofer is 4 ohm

    I can't believe that after all these years nobody has posted (that I could find) exactly what the rating for the stock 1st gen Mach stereo subwoofer amplifier is rated for. For many years I just didn't care that the stock subwoofer was blown, but I finally decided to replace it and see what...
  13. tekrsq

    Not wanting it to be a head gasket

    Plugs and COP's will cause a misfire, but so will bad injectors. They're electrical devices too, and can fail, not to mention the normal carbon buildup. The plugs and COP's have about 15,000 miles on them. I've ran injector cleaner through it multiple times over the years, but apparently...
  14. tekrsq

    Not wanting it to be a head gasket

    New engine is in, and almost 500 miles put on it. I initially had an issue with the brand new engine running "warm"....in the area of 210-215F on an 85F day, running at 70-75 mph. After watching my gauges for about a week, I was hoping the issue was a faulty thermostat....even though it was...
  15. tekrsq

    Radiator Replacement Question

    Ok, here's the deal. My engine was just replace with a new 5.4 reman. It's having little "Mickey Mouse" issues with it that are getting tweaked. The one that bothers me though, it runs 200-205+ F at highway speeds, on a 85-90 degree day. My old engine ran 193-200 all day.....rarely over 200...
  16. tekrsq

    99 4r100 Bypass Kit ??

    Just had my transmission cooler lines replaced (including the bypass line) and now the trans is overheating. So I assume the baypass vavle isn't working. However, I cannot find a bypass delete kit specifically for my 99 EB 5.4, 4R100. All I have found have been for the 7.3 engines with the...
  17. tekrsq

    Radiator Replacement Question

    99 EB 5.4...supposedly with the tow package. The OEM radiator appears to be a "2 core" version. To me that makes no sense in a vehicle supposedly to be used for towing. Regardless, I need to replace it. Should I go with a larger, single core or double core unit as opposed to a 3,4,5 row unit...
  18. tekrsq

    Not wanting it to be a head gasket

    Yep, afraid so. It ended up being a cracked head. Because of the design of the truck and engine, I found out that (in my area at least) is was $1,000 MORE in labor cost to replace the head/ head gaskets, than to replace the engine. So after much research, I decide to just put in a reman...
  19. tekrsq

    Not wanting it to be a head gasket

    Tried playing with the heater this weekend. Heat was normal, and didn't see any changes in engine temp one way or the other.
  20. tekrsq

    Not wanting it to be a head gasket

    Yeah, honestly, I'm learning more towards cracked heads than a cracked head gasket. Anytime a head comes off my vehicles, it gets magna fluxed and x-rayed. It's stupid not to.
  21. tekrsq

    Not wanting it to be a head gasket

    Electrical, with the sensor placed in the crossover tube on the intake manifold.
  22. tekrsq

    Not wanting it to be a head gasket

    It's been on the stock tune for several months. I only switch tunes if I'm going to be pulling anything heavy.
  23. tekrsq

    Not wanting it to be a head gasket

    I have an SCT X4 plugged into the OBDII port AND an aftermarket temp gauge on my A pillar. Both gauges read within 4 degrees of each other. The X4 does not indicate any stored codes. I have an older version of FORSCAN, but I haven't hooked it up because I didn't know if it would show me...
  24. tekrsq

    Not wanting it to be a head gasket

    I've owned the truck for about 8 yrs, and it operated correctly.........until recently. No changes in driving habit, etc. I do a fair amount of towing about 5,000 lbs with it, but I hadn't pulled anything for at least a month prior to this issue starting. Water pump and other parts (except...
  25. tekrsq

    Not wanting it to be a head gasket

    My issue started before the change. I was concerned about flow, that's why I went with the new/ bigger radiator, and other replacement parts.

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