Question about Cars & Trucks

1 Answer

1999 Saturn SL1 is leaking coolant in pipe attaching thermostat to engine how can I replace this pipe and what type of sealant do I need to apply to pipe threads?

The metal/steel coolant piping that runs from the rear of the thermostat and screws into the block of the engine is leaking. Can you provide PDF file with information on how to remove/replace this piping and can you provide me with what sealing product I need to apply to the pipe threads that will prevent leaking around this pipe at the engine?

Posted by on

  • dandrews114 Feb 19, 2012

    I am looking for the part name of the piping from the thermostat to the engine block. I am not concerned about the gasket for the thermostat but I do need to know what type of pipe dobe to use for the threaded fitting on this piping to prevent leaks around the threads.

  • dandrews114 Feb 20, 2012

    Thanks for your help. I am very dismaid at the lack of detailed part information and pictures of parts for this vehicle. Also I feel as a vehicle gets to a certain age the manufacturer of the vehicle should post free of charge repair information for the vehicles. When I think about purchasing a new auto the major contributing factor I use for the purchase is the price the dealer charges for auto repair parts and labor. I am very much upset by the overcharging of labor. I was charged three hours labor for the replacement of a radiator. This only resquires one hour of labor to remove the two hoses, radiator and replace it. The $100 an hour labor rate is rediculous.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Cars & Trucks Expert
  • 1,868 Answers

Hello1 Use the following product...Found at most auto part stores...

1999 Saturn SL1 is leaking coolant in pipe attachi - 2_19_2012_2_12_49_pm.jpg

Posted on Feb 19, 2012


3 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Brake Pipe Lines

Hi. I don't think that you will get one, or need one. I worked in a motorist accessory store for 10 years. We would make brake pipes up for customers but you need to take off the old ones to use as a pattern. You bend them into shape as you fit them, the replacements are much softer as they will be copper. They are relatively low cost. A local garage may make them for you, they will probably have the flaring tool needed to make the ends. Bleeding the new system is the fun part! Good luck, Matt B

Posted on Aug 10, 2008

SOURCE: The rear heater lines, metal pipes, have Is there

Have you thought of sandpapering the lines clean, then using JB Weld?

Posted on Dec 22, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 2000 saturn sl1, and i seem to be putting coolant in my car at least 2 times a week. It also overheats and when it does, it comes out of the top of the part that hold the coolant. Could this be my...

If it is coming out of the top of the radiator, you are getting back pressure. First, make sure there are not puddles under the engine where the water pump is at. If so, you will need to replace the water pump and gasket; as well as the thermostat. It sounds as though the thermostat is stuck closed - replace it (if no leaks from water pump) and see if this fixes the issue.
Also, start the car (radiator full) and let run to operating temperature. Feel the top radiator hose - if it is not hot, but the engine is, then the thermostat IS stuck closed. Be sure to ask for a thermostat housing gasket when purchasing the thermostat, as they do not always come together.
Please let me know if you need further assistance.

Aug 20, 2011 | 2000 Saturn SL

2 Answers

I have a 1995 jeep cherokee straight six or 4.0 liter where is the radiator thermosta soo i can replace it

Hi, It is actually called an engine thermostat, as it regulates coolant flow through the engine. If you follow the top large hose coming off the radiator to where it connects onto the engine, you will find a housing there connected to the engine with 2 bolts. There may be another hose connected to this housing also. You will lose a bit of coolant when doing this, so use a bunch of rags under the work area and a catch pan beneath the vehicle.
Parts needed: Thermostat, gasket, tube of black RTV sealant, new clamps for hoses if they look rusty or do not have good resistance on removal. (for factory spring type clamps)

Remove hoses from housing and bend back and tape back out of the way (use some cable ties if you wish) to keep coolant from running everywhere and so they are out of your work area. Remove 2 bolts holding the thermostat housing to engine. Gently tap housing with rubber hammer to break the gasket seal on housing. Once housing is off, you will find the thermostat underneath. Remove thermostat from engine. Clean the housing and engine mating sufaces of all traces of gasket material. Surfaces must be clean and dry before re-assembly. Use a rag to soak some coolant out of engine side hole to facilitate cleanup. Scrape off gasket material and use brake cleaner to wipe off residue and dry with clean shop rag. There are 2 types of thermostats for the jeeps, one has a rubber seal around the thermostat, and requires no other gasket, the other has no seal and requires a separate paper type gasket to be sealed to the mating surfaces. I believe the straight 6 has the paper type. Install thermostat with spring end into engine cavity. Put a thin even coating of black RTV sealant on the engine mating surface. Place gasket on RTV coated surface, aligning the bolts holes to holes in gasket. Apply thin even coat of black RTV sealant to thermostat housing mating surface. Put a small amount of RTV sealant on threads of bolts (clean them first) coating the entire thread. Put housing onto engine and install bolts finger tight - firmly seated. Allow RTV to cure for 5 minutes. Some RTV will squish out, thats OK, but use the RTV as a THIN EVEN coat, as you dont want a bunch of excess sealant in the thermostat cavity. Torque bolts to 16-20 ft. lbs. or a good wrist tightening. DO NOT overtorque, as you will either crack the housing, or cause warpage making your gasket leak. Re-install hoses and tighten clamps. If spring type clamps were on the hoses, replace the small clamp with a band type clamp. If large clamp installs tightly, it can be reused. If it was rusty and goes on rather easily/weakly - replace with a band type clamp. Refill - check coolant level, add as needed. Start engine, allow to reach operating temperature and check for leaks. Done!
Please rate this answer! Thanks, Mike

Jun 20, 2011 | 1995 Jeep Grand Cherokee

1 Answer

Replacing a thermostat on 2004 nissan sentra

  • Prepare for the replacement by disconnecting the negative battery cable and draining the engine coolant into a container--you need to remove the drain plug from the radiator first and then the drain plug at the engine block.

  • Remove the engine's cooling fan by loosening the fan/water pump pulley nuts, unclipping and removing the fan shroud's lower half, removing the water pump pulley nuts and pulling the fan out from underneath.

    Disconnect all components blocking access to the thermostat by removing their bolts. On four-cylinder engines, this includes the air cleaner, air intake duct and the power steering pump's support bracket. On a 3.3 liter V6 or SOHC engine, remove the upper radiator hose from the intake manifold's coolant outlet.

  • Slip off the drive belts blocking the thermostat by turning their tensioner bolts with a wrench or breaker bar. On a 3.3 liter truck or DOHC engine, follow this by removing the upper idler pulley bracket. On a 3.5 liter engine, remove the water pump drain plug from the front end of the block.

  • Detach all hoses from the thermostat housing cover by loosening the hose clamps with pliers; this usually includes the lower radiator hose. This is only needed on V6 engines; you will keep the hose attached on a four-cylinder.

  • Remove the thermostat housing cover by removing its bolts. There will be some coolant spilling out when the gasket seal breaks.

  • Disconnect and remove the thermostat from its cover by removing its screws. Take note of how the thermostat is positioned within the cover.

  • Scrape away all traces of gasket or sealant from the housing and cover and clean the surfaces with lacquer thinner.

  • Apply RTV sealant around the edge of the thermostat cover. You need to re-install the cover within five minutes of applying this sealant.

  • Mount the new thermostat into the cover in the same position the old thermostat was in.

  • Re-install the thermostat cover and all other parts in reverse order of installation.

  • Wait a half hour for the RTV sealant to cure before refilling the engine coolant. Use fresh coolant if the old coolant is contaminated.

  • Mar 20, 2011 | Nissan Sentra Cars & Trucks

    1 Answer

    To replace thermoastic

    You will need a few things to do this job. Lets start with the auto parts store- new thermostat(make sure it comes with the gasket), gasket sealant, coolant, (if your hose are 3 years or more)new hoses, hose clamps. now for the tools, scraper, ratchet, extension, and metric sockets, flat tip screw driver, and maybe pliers. got it, good, lets start. follow the top hose to the cap( or thermostat housing cover), on the air intake, and remove the hose. now on the cap, you will see 2 bolts(one on each side), remove the bolts and save the bolts. gently pry up the cap, and scrape it clean(to the metal), removing the old gasket, and gasket sealant. now remove the old thermostat, and clean that also(down to metal also) to remove the gasket and sealant. apply gasket sealant and install the new thermostat. place new gasket, and apply gasket sealant to the cap. replace the cap, and bolt back down(do not over tighten, the cap will break) reconnect the hose. allow 30 minutes to allow the sealant to set up. start the car and let it warm up. check for leaks. no leaks, great. allow to cool, and replace any coolant needed. Hope this helps

    Jan 16, 2011 | 1994 Toyota Camry

    2 Answers

    My 1999 Alero must have a leak somewhere because the thermostat gauge rises every few days. I put coolant in it at least 1 a week. I had a new water pump and thermostat put on it, but it is still...


    Sep 26, 2010 | 1999 Oldsmobile Alero

    2 Answers

    Water is leaking out of my coolant is overheating with less than 2 mins of driving

    Need to seal the leak in the coolant container with epoxy or by replacing the coolant container.

    Fill coolant system with 50/50 solution up to 2 gallons may be required to stop the overheating.

    Don't drive an overheated engine.

    Aug 11, 2010 | 1993 Saturn SL1

    1 Answer

    It's over heating, but coolant level is good. My guess is thermostat. How do I change it? Never worked on a Saturn.

    Follow your radiator hose to the engine block. You'll come to a housing attached to the hose with 2 bolts holding it on. You'll have to drain your coolant, remove the radiator hose and remove the retaining bolts on the housing, then remove your thermostat. Installation is in reverse of removal. Make sure to top off your coolant level and recheck after engine reaches temp.

    Nov 03, 2009 | 1993 Saturn SL1

    1 Answer

    Intake manifold sealant repair now leaking maybe oil? coolant b4

    You need to remove the thermostat housing again. Then you will have to extract the bolts you broke off. You will need to drill and tap them so you can use an easy out to remove the broken bolts from the threads. Then you can clean up both mating surfaces and replace the gasket and the thermostat. Check to make sure you did not crack the thermostat housing or you may have another leak when finished. They are usually aluminum and break easily if too much pressure is applied or they are corroded and weak.

    Feb 25, 2009 | 1999 Ford Taurus

    2 Answers

    Coolant leak

    Hello **** B. First double check the hose connection for the leak, it can drain to another connection & appear to leak there. Second, yes there is a gasket on the pipe connection to the block. To replace the gasket, park the car in a location for least 5 to 6 hours to cool down mabe longer. Have the gasket replacement, a tube of gasket sealant, 2 gallons of antifreeze, a drain bucket, and a very large rag or rags. Remove the hose, catch the fluid in bucket, remove the pipe, clean the old gasket area, apply gasket sealent, attache gasket, mount the pipe, tighten all mounting bolts a 1/2 to 3/4 turn each until torqued downed evenly, and attache hose. Fill reservoir, with radiator cap off, start engine and add coolant to radiator until full and you see fluid flowing. Apply cap & check for leaks. Easy???????? Good Luck.

    Oct 17, 2008 | 1995 Plymouth Acclaim

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    216 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Cars & Trucks Experts


    Level 3 Expert

    76070 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22156 Answers

    Randy Ohler

    Level 3 Expert

    14585 Answers

    Are you a Car and Truck Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides