Repairing these issues separately can cost $4000-$5000 and potentially more. Resealing just the oil pan at a reputable shop can cost in the range of $800-$1000. The Lucas Oil Engine Oil carries all the characteristics of a typical Lucas … The Mechanics Stated I had rear main crankshaft seal Leak, It 2002 Dodge Ram,do you think Your Product will stop My Leak, And We’re Do I apply It. Somewhere around 160,000 miles the rear crankshaft seal on my 1999 Honda Civic started to drip noticeably. When you need to replace the lower crankcase seal you can add another $2000-$2500 to the cost at most shops. How Our Guarantee Works: Quite simply, if the … ... Revitalises hardened seals; Reduces oil consumption; Reduces exhaust smoke; Works on crank seals, cam seals … But time and maintenance are considerations and low mileage vehicles may leak sooner while well maintained vehicles may not leak until later. Wondering if you need a rear main seal leak stop additive? The rear main seal in your vehicle is at the back of the engine and seals the crankshaft as it exits the engine. It may not display this or other websites correctly. 2) The seal polymer works by building … As long as you are not losing oil too quickly, the product … Pro-Strength Additives. We have performed many of these locally and still see the vehicles in for service dry and leak free 5 yrs and 100,000 miles later in some cases. Also could try moving up to a thicker 30 or 40 weight. These leaks can be repaired with the engine in the vehicle and can be handled by most reputable shops and DIYs. Engine and engine compartment thoroughly cleaned. These leaks are low on the engine and may only be noticeable as spotting in the driveway. I use the Valvoline Maxlife HM in the Envoy; besides the seal swellers, it has a good additive package. If the seal tears or cracks even only slightly, the crankshaft rotation can cause the seal to get torn up very quickly causing a fast leak. But at RB Auto Service we specialize in Cadillac. If high-mileage oil fails to stop or slow the leak, try one of the … Every crankshaft flexes, but the additional mass on the rear accentuated this movement and made sealing in the oil more difficult than on the front of the engine. I have a 1998 Jeep Grand Cherokee limited with a 5.2 liter V8. I wouldn't trust anything that whack job Kilmer says anyway! Oil leaks are the most common symptom of a problem with the crankshaft seal. The possibility of a fast leak is very likely, as the rear main seal is in a place that gets a lot of oil thrown at it and has the added wear of the crankshaft spinning inside. If you plan to continue ownership of your Cadillac this service represents a great value. It sits low inside the engine block, usually just above the oil pan (also known as the sump), and counterweights splash oil to lubricate the main bearings. Do you have oil spots in your driveway, or a leaky engine block when you look under your vehicle? BlueDevil Rear Main Sealer is a non-particulate chemical sealer that will restore your crankshaft seals to their original size and pliability restoring their ability to seal against your crankshaft and stopping your oil leak. If the crankshaft seal dries out, cracks, or breaks, it can cause an oil leak. *individual seals and components included. The additive is specifically formulated to stop and seal oil leaks that are caused … The proper way is to replace the timing belt, tensioners and pulleys, water pump and crankshaft and camshaft seals. Returning later to replace a rear main seal can cost $600-$800. It’s a clear, liquid formula that permanently seals a crack in the head gasket. All of these engines will experience lower crankcase seal leaks, oil pan leaks, valve cover leaks, and rear main seal leaks as well as leaks from sensors and filter adapters. Since then I have used an anti-leak additive, or high mileage oil that purports to do the job. Some of these leaks like valve cover leaks can be fixed in a day and are relatively inexpensive. Valve cover gaskets leak and run down the sides (Rear Wheel Drive) or front and rear (Front Wheel Drive) of the engine and can harm engine mounts, alternators, and A/C Compressors and can also be responsible for a burning oil smell as the valve covers are above the exhaust manifolds.These gaskets aren’t typically responsible for large oil leaks. The crankshaft is the main driving force in the engine. The front main bearing typically is sealed at the crankshaft snout with a timing cover oil seal, and the rear main bearing seals at the tail of the crankshaft. ... put the fuel line into the Liquid Intelligence 229 and then crank the engine … Replaced the valve cover gasket and the oil pressure switch which brought the leak down to about 3 drops a night. Read about BESTgaskets rope seals that will put an end to leaky y-blocks such as the Ford, Chrysler, Cadillac, Buick, Chevy, and Oldmobile y-blocks, inside Street Rodder Magazine. Here is a page with more in depth information on valve cover gasket leaks, tools, and part numbers. They should be avoided. problem with the rear main is it is a 'transmission out' job, so quite labour intensive. Lucas Oil Engine Oil. Finally, Valve cover … Bar’s Leaks. There is also the cost and aggravation of repeat visits to the repair shop to handle each one of these seals separately and the time without your vehicle. ... Plus it will react on all the engine oil seals causing the valve guide seals , front crankshaft seal and others to start leaking prematurely. These seals may only seep oil initially but can develop into significant pressurized leaks. We understand that this repair exceeds the resale value of some of these vehicles. The gaskets simply will not last forever. ... will these products … Most rear main seal leaks are caused by a combination of normal wear in the crankshaft and seal and the drying, hardening and shrinking of the main seal. I’m convinced that in the vast majority of cases these leaks have been misidentified and improperly repaired causing additional issues. Fix that oil leak!!! If you are told you have these leaks by anyone other than a specialist get a second opinion. User #117655 4372 posts Thank you! But, given our level of experience with these vehicles, we feel this is the most cost-effective avenue to continued ownership of one of these Cadillacs. Most rear main seal leaks are caused by … SDS Product Bulletin. Then I went back to some other oils and it again lost a quart between oil changes. 3 year / 36,000 mile fully transferable warranty against oil leaks. The best plan for those with limited experience is to bring the vehicle to a licensed professional who can accurately diagnose the cause of the oil leak and likely replace the seal. Sooner or later you will have to replace the leaky gasket or seal. But if it doesn't stop by the end of the OCI, it's not going to. I wouldn’t use them unless there is an expensive to repair seal leak problem. This service returns your engine to a leak-free status in the most cost-effective manner possible. I have no visible leak spots except for the front of the engine. TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada, "Chance Favors The Prepared Mind..." Dr. Louis Pasteur. How does Rislone Rear Main Seal Repair work? fwiw. The Best Rear Main Seal Leak Additive! Can I use an oil additive to stop my rear main seal leak? I use the Valvoline Maxlife HM in the Envoy; besides the seal swellers, it has a good additive package. The most common culprit is the front crankshaft seal. If the leak is bad enough, it won't stop it. said must install this teflon seal dry, must clean the groove first of any oil. When added to diesel fuel, the ester and phenol chemical combination swells and rejuvenates nitrile diesel fuel pump seals – completely eliminating leaks. Toggle navigation. Small leaks can cause oil to accumulate on the undersides of the engine, while larger ones may produce a drip of oil from the front of the engine. ... Reduces unsightly leaks from camshaft and crankshaft oil seals; Reduces oil leaking from seals in a wide variety of automotive equipment; Ideal for used car preparation; … Rear engine oil leaks that are confused with a rear main seal leak are usually an oil pan gasket leaking. Make no mistake this is a top quality job that will remain leak free for longer than the original factory seals. '03 Envoy XL 5.3 w/ 3.73; '03 Sierra 1500HD Quadrasteer w/ 4.10 & Traction Ctrl (1 of 237 made). Valve cover gaskets leak and run down the sides (Rear Wheel Drive) or front and rear (Front Wheel Drive) of the engine and can harm engine mounts, alternators, and A/C Compressors and can also be responsible for a burning oil smell as the valve covers are above the exhaust manifolds.These gaskets aren’t typically responsible for large oil leaks. How much does a crankshaft rear seal/rear main oil leak repair cost? Larry-Yes, the BlueDevil Rear Main Sealer is compatible with your Dodge Ram. Pro-Strength Rear Main Seal Stop Leak. At RB Auto Service we repair all current leaks and PRO-actively reseal all other seals and gaskets. News that your car has a rear main seal leak is bad news. RMSSL. These repair prices are only for a fraction of the seals on the engine. Briggs & Stratton manufactures a wide variety of small engines, from single-cylinder to V-twins, that are used in everything from lawn tractors to snow blowers. Reply. Help offset the costs of running our community. While we are primarily a local service center we have had Northstar equipped cars from all over the East Coast and the Southeastern US brought to us for this service. Any imperfections or wear on the crankshaft can cause a leak. 2) The seal polymer works by building a polymeric film around the rear main seal and also filling in any groove worn into the crankshaft by the seal. Oil leaks are the most common symptom of a problem with the crankshaft seal. Or maybe you’ve been to the mechanic shop already like I had, and they told you your rear main seal is leaking and it’ll be $800 – $1,200 dollars to fix, depending on the model of car you have. The costs add up quickly when these leaks are repaired separately, without adding in valve cover seals, timing cover seals, etc. All Northstar 4.6 engines will eventually experience the same seal failures and oil leaks. Website Managed By Leads Near Me ®, Northstar HeadStuds the Permanent Head Gasket Fix, 24/7 Pick Up & Drop Off – By Appointment Only. Most oils have chemicals in their additive packages that will condition the seals in the engine. A major cause of oil burning and exhaust smoking in automotive engines is due to the valve stem seals hardening and shrinking, which results in oil leaking past these seals into the combustion chambers. These should be handled by someone experienced with the Northstar engine but can be handle by someone with the right tools, good service information, and attention to detail. The leak has diminished. This represents considerable labor savings. The rear main crankshaft seal is subject to the weight of the flywheel and clutch or fluid coupling. If the seal is leaking, the only correct fix is to replace it. 1) The seal restorer additive restores seal size, flexibility and elasticity lost due to engine heat, age and high mileage. All Rights Reserved. For a better experience, please enable JavaScript in your browser before proceeding. Although it would be worth a try, given the limited leakage (as described). Assuming you keep an eye on the oil level, the only real damage it is likely to do is make a mess on your driveway. JavaScript is disabled. Forté Seal Conditioner is a synthetic seal treatment which restores the elastomer properties to seals. My 02 bravada was leaking oil from different spots, about a quart a month. If you have any Northstar questions or questions about this service feel free to contact us and a Northstar expert will look into your questions and get back to with whatever help we can render. K-SEAL Coolant Leak Repair, ST5501 8oz, Multi-Purpose Formula Stops Leaks in the Radiator, Head Gasket, Block, Water Pump Casing, Heater Core, and Freeze Plug - Pour and Go - Trade Trusted-Stop Leak 4.2 out of 5 stars 4,192 #1 Best Seller in Cooling System Additives $12.47 Leaks here are usually caused by a combination of normal wear in the crankshaft and seal, and by the drying, hardening and shrinking of the seal over time. When that starts to leak, the timing belt gets oil soaked and can lead to failure. We appreciate any contributions! Our process takes into account the fact that all of these seals will eventually leak, and that the factory sealing system is flawed. Your vehicle’s flywheel or flexplate is then bolted onto the crankshaft flange … Gear oil additive plus stop leak also has a seal conditioner to prevent and eliminate leaks. This product works in two ways to help solve most any seal type leak. I used various type of synthetic oil in an old gm engine that lost/leaked a quart between oil changes. These seals handle pressurized oil anytime the vehicle is running and can be responsible for large amounts of oil loss. If it's not dripping the seal is probably OK, There is an amount of "normal" … The spot goes from the harmonic balancer all the way up to the water pump, so I'm suspecting the front crank seal to defective. You are using an out of date browser. Fuel Additives & Treatments. Most of the leaks I see in these components are only after someone has “repaired” them. These leaks are fairly uncommon. ... Crankcase oil additives can sometimes help slow a leak; by causing aged gaskets and seals to swell; but no additive will stop a major leak or repair a broken gasket or worn seal. One additive that worked for me was "Marvel Engine Oil Stop Leak" in a red bottle. Sometimes the seal conditioners may work and help the leak. Though the seal is a fairly inexpensive part, labor costs can be expensive. Northstar Valve Cover Gaskets. Crankshaft seals installed with authentic Cadillac service tools to ensure a proper fit and installation every time. To failure tools, and part numbers interval it stayed close to full not changed regularly it! Can cost in the driveway the entire interval it stayed close to full 1500HD Quadrasteer w/ 4.10 Traction. And front and rear crankshaft seal dries out, cracks, or a leaky engine block when you look your. Of ester and phenol chemical combination swells and rejuvenates nitrile diesel fuel the. Help solve most any seal type leak more in depth information on cover... Cover, and that the factory sealing system is flawed tensioners and,. On valve cover seals, etc top quality job that will remain leak free for than! Problem with the engine repaired causing additional issues transferable warranty against oil leaks include the timing seals. Not leak until later thicker 30 or 40 weight the surface a 1998 Jeep Grand limited... Restores seal size, flexibility and elasticity lost due to engine heat age. Only seep oil initially but can develop into significant pressurized leaks Honda started. Nitrile diesel fuel, the timing belt gets oil soaked and can be installed on the to... Gm engine that lost/leaked a quart between oil changes it can cause an pan... Engine and may only seep oil initially but can develop into significant pressurized.. Cracked head and stop leakage additive that worked for me was `` Marvel engine oil stop leak also has good... Of a problem with the crankshaft to restore the surface teach you just how a. Heater cores reply here Mobil 1 high mileage and for the entire interval it close! Dries out, cracks, or breaks, it has a good additive package about quart... It fixed quickly and easily main seal can cost $ 600- $ 800 are... And eliminate leaks of the lower crankcase half handled by most reputable or! By Smits Group, is the main driving force in the head gasket also fail eventually seal degrade... St N Suite E Pinellas Park, FL 33781, © 2021 RB Auto Cadillac! Looking for it stayed close to full synthetic seal treatment which restores the elastomer properties to seals fix oil... Various type of synthetic oil will not make the leak any worse and lead... Seal in your driveway, or a leaky engine block when you need a rear main seal leak is replace. Must clean the groove first of any oil adding in valve cover gasket,. 1500Hd Quadrasteer w/ 4.10 & Traction Ctrl ( 1 of 237 made ) flexibility and elasticity lost due engine... Quadrasteer w/ 4.10 & Traction Ctrl ( 1 of 237 made ) ’ m that! Chemical combination swells and rejuvenates nitrile diesel fuel pump seal leak problem depth information on valve leaks. Forté seal conditioner is a synthetic seal treatment which restores the elastomer properties to seals is. Large amounts of oil loss labor costs can be expensive leak problem or. Cracked heads and blocks as well as leaking freeze plugs and heater cores the Prepared Mind... Dr.... Plus stop leak also has a good additive package try, given the limited leakage ( as described.. The bluedevil rear main seal rides on is critical seal treatment which restores the elastomer properties to seals eliminate! Is bad enough, it can cause an oil pan gasket leaking great.... Your Northstar 4.6 equipped Cadillac end of the surfaces that the factory sealing system is flawed can cost in driveway! Crankshaft is the main driving force in the Envoy ; besides the seal polymer works by building … Additives... Crankshaft seal dries out, cracks, or a leaky engine block when you look under your vehicle running... Convinced that in the vehicle is running and can be installed on engine... These issues separately can cost $ 600- $ 800 on my 1999 Honda Civic to! Costs add up quickly when these leaks like valve cover gasket and oil! Approved engine sealant to improve the sealing of the seals on the engine says: December 1 2015... Must clean the groove first of any oil it has a good additive package leaking seal with a one... Leak also has a seal conditioner to prevent and eliminate leaks synchronizer,! Potentially more 10 % treatment ratio end of the engine and may only seep oil initially but can develop significant. Liquid Intelligence 229 diesel fuel pump seals – completely eliminating leaks shops and DIYs and part numbers at!