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- Attempted to remove EGR valve, but still couldn’t get it to budge. Will require a specialized removal tool, which I promptly ordered on eBay.
- Checked oil before starting: It was just a hair past ADD, which is about 2 quarts low. Picked up 2 quarts of 15W40 to keep on hand.
- Checked coolant reservoir: Was well below cold max line. Dark residue pooled in top of reservoir, which I’m guessing is oil mixed with coolant. Looked like there was a dark layer lower down in the tank. Added ~1 quart of red coolant picked up at Advanced Auto.
- Suspect O-rings/gasket in oil cooler.
- Looked under engine. Dab of oil on coolant return line on the bottom of the oil cooler.
- Truck needed to be jumped to start.
- Noticed alarm comes on immediately along with check engine light. Engine Warn light and Stop light come on a few minutes later. Pablo stated the alarm was related to the stop light, but if that was the case, the alarm shouldn’t come on until the Stop lamp comes on.
- Left Pembroke Pines at around 12:40 and drove ~320 miles to St Augustine, 30 miles south of Jacksonville. Outdoor temp was 80-84 most of the afternoon. On the expressway, coolant temp rose to nearly 200 if speed exceeded 70MPH. Several traffic slowdowns in Fort Lauderdale and further north.
- Engine may have bucked a few times if I pressed hard on the gas to go from 60-70. Not 100% sure it wasn’t just road conditions.
- Later on after stopping for gas and again at a rest stop, suspension shifted hard when accelerating from a stop. I think it was 2nd-3rd or 3rd-4th gear.
- Low beam headlights not working. Worked on high beams. Later discovered this was by design to accommodate the headlight wigwag feature. High beams are normal headlights.
- Ambient temp cooled as the sun went down dropping from 80 to 73. Coolant temp dropped to ~180-185.
- Idled the engine for a few minutes after getting to the hotel.
- Checked oil an hour later and it doesn’t appear to have lost any more.