Lisle 60800 Heater Core Backflush Tool with Air

The Lisle 60800 Heater Core Backflush Tool with Air is a great product that serves a specific need and does it well (and affordably). Have been fighting for years with the common problem of NO HEAT from drivers side vents on my 2011 Jeep Wrangler. Watched many videos on how to fix this and bought a couple hoses, connectors, etc. and tried a straight garden hose water flush - didn't work (not much, if any, sediment came out). Drove with no heat for another season thinking I had to replace my heater core - something I was not looking forward to. In a desperate attempt to get heat in the middle of winter, I watched videos about replacing heater core (and was ready to pay the price) when I came across a video of a guy using air + water to clear heater core blockages using a competing product (MightyVac). Since that product was pretty expensive, I searched and found this Lisle version - which frankly is overpriced for what it is BUT worth every penny for the fix it provides. How I cleared my blockage and got heat back: Cut a sacrificial hose into 6 foot sections, attached 1/2" x 8" copper pipe pieces with clamps, thus creating created an inlet & outlet hose to plug into my heater core supply lines. I clamp/pinched radiator top hose with a hose clamp tool to avoid coolant loss. I pushed remaining coolant out of heater core water from garden hose then blew remaining water out of heater core by mouth. Filled heater core with cleaning vinegar and let sit for 1 hour. Hooked up Lisle air flusher and ran it (100 PSI from small pancake compressor) with hose water to try to clear blockage in core. A small amount of silt came out first time into 5 gallon bucket. repeated the hose water flush 5 more times then reversed the hoses to backflush the opposite direction. Again, only a few small black flakes every flush. Redid the vinegar treatment and repeated the 5x flush never getting much more than a couple black specks out each time. Filled core with vinegar & let sit overnight. Redid whole procedure 5x each way getting a couple specks each time (a couple times I got a couple larger chunk/specks/flakes). Would this ever end? Next day I used ThoroFlush instead of Vinegar and repeated the same procedure 5x each way (going both directions is actually what works IMO). FINALLY, upon looking closely into each 5 gal clear water flush, I wasn't seeing any more minute specs. I probably repeated the 5 gallon flush & dump 30+ times in all. Removed my hoses and blew final air out of heater core. Used Funnel to refill heater core with coolant. Reattached inlet/outlet hoses back to water pump and thermostat. Used a coolant funnel fill kit like this to get air out of system https://www.amazon.com/dp/B01I40ZQWE?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4 And I GOT HEAT !!! Highly recommend the Lisle heater core flush tool as nothing else worked for me. Note: Using the Lisle gun requires you to use two hands & press on/off the air injection to cavitate the flow and knock particles free. Yes, I used 100 psi going in but didn't damage anything. Also, There is a lot of hooking and unhooking the worm clamps to reverse flow, add vinegar with funnel, etc. so I used a small battery driver to tighten, loosen the clamps each time - couldn't imagine doing it 30+ times with a screwdriver.

Worked great on my 2011 BMW 528i with no heat. A hose alone would t have cut it. The ability to add some bursts of 100 psi bumps to push the water through the clogged core helped back flush everything out. Saved me from having to pull the dash out to replace the heater core. This helped blow the sediment out that had collected in my heater core, returning it to working properly. From 50 degrees F to 158 degrees F. 👍 Great tool.

This product brings new lift to old heater cores. The ability to connect both water and air to your heater core lines allows you to force water through the system to flush out small and large debris. The tool did not leak at all and was easy to connect to both the heater lines, air line and water supply. Once you thoroughly flush the core, you will have nice warm air blowing again. Save hundreds from having a shop flush the heater core, its easy with a tool like this.

Awesome tool, works amazingly well. Had to flush a heater core on a 2010 Dodge Ram 2500, worked perfect. I would advise buy the nozzle with the air. I was skeptical, but, the air allows you to add more presssure to the water. I used it to “pulse” the water, which I believe helped to agitate the debris. Excellent build quality if the tool, works great, worth every penny. Beyond satisfied!

Works great for flushing heater cores

This worked amazing for flushing out my 97 Wrangler heater core. The tool is excellent quality.

Works great

I had no interior heat in my truck! Diagnosis: heater core is plugged with rust and particles. I used this backflush tool the same day it arrived. Now, the interior heat is cooking! The addition of the compressed air really does the job. Just make sure you're out of the line of fire when hitting the air. I highly recommend this tool.

No es lo que esperaba! Al ser un producto de la prestigiosa marca Lisle yo esperaba que fuera una pistola de agua que al aplicarle presión neumatica (aire a presión) acelerara la presión y la velocidad del agua y no es así al contrario cuando estas aplicando agua y presionas el gatillo del aire se reduce el flujo de agua, pienso que es porque la conexión está en T y en la salida del agua, entonces el aire se reparte entre la salida y la otra parte de presión a la misma manguera regresando agua si fuese al revés que el aire entrara por detrás del flujo de agua saldría con más velocidad y presión

Works as advertised. Used on 2016 Ram 2500 6.4 HEMI with weak/no heat from vents, dealer's diagnostics indicated partially plugged heater core. Removed rubber intake and return lines from aluminum manifold lines, ***IMPORTANT*** using low pressure hot water back flushed and forward flushed about 5 times each way (some sand and crud came out) before using Prestone Total Coolant system flush (its sodium acetate, mild cleaner) for about 10 minutes using a transfer pump and bucket to cycle thru the heater core. Estimated about 1.5 teaspoons worth of fine sand and small chunks of rust and crud (fine sand likely from the aluminum casting) Back and forward flushed another 15 times each way until no more material was flushed out into bucket. Blew out using low pressure air (10 psi) to remove remaining water. Re-connected system, added pre-mix coolant, burped air out of system, initially no heat but as soon as got into highway and hit working temps (100C) the heat came back, almost too hot to hold hand next to vents. Great tool for flushing heater core, another Happy customer!

US-made product. A bit pricey but the quality is really good! if your heater core is plugged, do NOT put 90psi air through it! you will blow a hole on it. If there is no clog, 90psi is okay

Product works great, friend of mine has one that i borrowed, so i bought my own.

This worked great at unplugging my heater core, saving a big repair bill. It is a little awkward at times, but that was expected.