coolant leak

  1. Obs-

    Coolant leak

    I have a 1988 K1500 with the 350 TBI and ive had a coolant leak that would drip around the starter area. I would top it off but so it would stay level. 2 days ago i was driving then my temp spiked so i pulled over and turned off my truck . my trucks idle didnt sound weird no knocks to odd noises...
  2. S

    Leaking Coolant- Exhaust manifold bolt?

    Howdy all, Been looking for a direct answer but can’t pin one down. I’ve got a coolant leak onto the passenger header from my 7.4 L29. It’s at the rear most bolts of the header itself. I guess I didn’t look close enough and just had a mechanic replace the intake manifold gaskets (and valve...
  3. WaterDigDog

    Troubleshooting coolant leak and noise

    My ‘88 cried mercy today… Symptoms: already having trouble starting (TBI issue), small amount of black smoke on starting. Small oil leak but oil level ok. On turning the key today, once it got running for a few second it went CLUNK, and then no turnover, only solenoid click. What would make...
  4. 98Sierraakadadstruck

    Mystery Coolant Loss in 98 GMC 5.7L

    Hello all. I have a 1998 GMC Sierra 1500 with a 5.7L Vortec and a 4l60e, 2 wheel drive. Just hit 270k miles. Truck runs terrific. Everything. But every 500 miles or so my radiator ends up about close to half empty. The truck doesn't overheat .. I've never let it run dry of coolant. I just keep...
  5. B

    Coolant leaking from intake manifold?

    I came into ownership of a 1996 Chevy C1500 with the 5.7L with ~150k on the odometer a few months ago. I got a pressure tester today and found a leak from what appears to be where the intake manifold meets the lower part of the engine (the block?). What I'm questioning is whether this is an...
  6. V

    1998 K1500 blowing white vapor, but no coolant loss

    A few days ago my truck began tremendously loosing power. After arriving home I noticed it was blowing white vapor out of the exhaust. My original assumption is it’s a cracked head, blown head gasket, or some other gasket. However I have not lost any coolant, the oil looks just fine, and it...
  7. 1994chevycheyenne

    Using BlueDevil Radiator and Block Sealer to Fix Coolant Leak in my 1994 Chevy C1500

    In this video I use the BlueDevil Pour-N-Go Radiator and Block Sealer that I purchased from AutoZone on my 1994 Chevy C1500 with the 4.3L V6 to see if I can fix a coolant leak.
    • 1994chevycheyenne
    • Thread
    • 1994 c1500 1994 chevy cheyenne c1500 bluedevil c1500 coolant leak radiator radiator leak
    • Replies: 1
    • Forum: Member Trucks

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