Question about 2001 Chevrolet S-10

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Small coolant leak at front of engine hose area, not always maybe 1 out of 5 times driving to work.

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Which hose? Radiator hose? or at the engine? upper or lower? Water pump perhaps?

Posted on Nov 19, 2009

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  • Chevrolet Master
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If you can narrow down where the leak is coming from, it will be easier for you to fix, but it is most likely either a minor radiator leak, or your water pump. You can put a can of radiator stop leak in your vehicle, such as bars leak. It wont hurt anything. If the leak continues, and appears to be coming from the engine area, the water pump is failing, but also check around the thermostat housing, near where the upper radiator hose connects to the engine

Posted on Nov 19, 2009

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2 Answers

Freeze plug location front of chevy 5.3 liter engine diag

Hello Richard,

There doesn't appear to be a freeze plug on the front of the block.
They are always located on the lower sides of the block.

If you can see water on the front of the engine do a visual inspection when the motor is off and cold.

Take a rag and dry off any noticeable moisture. Start the engine and let it warm up, carefully check all the areas listed below to see if you can isolate the leak.

The radiator could be leaking and dispersing coolant towards the motor while driving the car. A hose or fitting could be leaking. The intake manifold or thermostat gasket could be leaking. The water pump could be leaking at higher RPM's.


May 13, 2016 | 2001 Chevrolet Silverado

1 Answer

Leaking coolant; had water pump replaced but still leaking coolant

check for a pin hole around a hose clamp will be visable when engine is warm and under pressure. so have some one push lightly on accelerator pedal while looking at hoses and clamps look for a small hose as hell front center of motor area below where the carb would be there might be a small hole there

Sep 15, 2013 | 2001 Ford Taurus

1 Answer

I have no heat unless the car idles for a long period, 15 maybe 20 mins. The gauge warms up as the motor does and there's no indication that the heater core is leaking. I want to try something...

Before even trying a new thermostat, try blocking air flow past the radiator and engine area with some cardboard in front of the radiator. If your temp. gauge shows below half all the time, try a hotter rated thermostat, one that stays closed just a bit longer. Say your t-stat is rated at 190 degrees, get one that is rated at 193 degrees- do small raises to avoid overheating-and in the summer, you may want to go back to the lower rated t-stat.. A parts store or Ford dealer could help you pick an optional thermostat.
To replace, drain enough coolant from the radiator so the level in the engine is below the thermostat housing. Take off the upper radiator hose from the thermostat housing. remove retaining bolts or nuts from the housing, any other obstructions, and pull the housing off, replace thermostat, clean the gasket mating area on the housing and the engine block, use a new gasket and fit all back together. Careful not to overtighten the t-stat housing bolts: the torque specs would be small-about 15-20 foot pounds of torque-just snug them down good-you can always go back and re-tighten a little if you see a leak. So, all back together, refill coolant and overflow tank, run engine with radiator cap off till engine is hot, and thermostat opens-this will helpyou bleed air out of the system. When thermostat opens, coolant level should drop a little. Shut off the engine, top up radiator and overflow tank as necessary, and replace radiator cap. Check for leaks.

Nov 09, 2012 | 1991 Ford Escort

1 Answer

Coolant leak leaking on front passenger side near wheel well almost under the engine

check all your hoses run vehicle for awhile the inspect hose in this area. look for obvious things next check at the engine to see if a freeze plug is leaking then inspect you heater assembly the core may be leaking I'm leaning toward a hose or shut off valve

Jul 04, 2012 | 2001 Ford Windstar

3 Answers

Losing coolant from the reservoir but cannot see any coolant leaking on drive. Fill reservior to MAX and within ~10miles, reservoir is drained. Refill while engine still hot and don't lose nearly as much...

my '01 Jetta had a similar problem. I could always smell coolant and the bottle was always low. I crawled under the car and there it was..a caked on mess of pink antifreeze. There is a plastic intersection 3 way valve where the coolant temp sensor resides. it has 2 bolts and a rubber o-ring. Because it is plastic, it cracks. it drips down onto areas which are really not visible from above and then sizzles and melts onto areas under the engine. The part was only about $25, took 30 min to install and my problem is now fixed. Air was getting into the system through the small crack in the valve further complicating the system operation.

Nov 09, 2010 | 2006 Volkswagen Jetta

1 Answer

How to fix a coolant on a car

How to Fix an Engine Coolant Leak Your car's coolant system consists of various components. The water pump, shaft seal, radiator, heater cores, freeze plugs, hoses and the engine itself are areas where leaks can occur. The solution for fixing a leak depends on where it's located. Read on to learn how to fix an engine coolant leak. jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); }); Difficulty: Moderately Challenging Instructions
  1. 1

    Locate the leak. This can be difficult, so take your time. Some leaks, such as those in the freezer plugs, are behind the engine mount or other components. You may need to inspect the car from underneath to detect this type of leak.

  2. 2

    Buy an anti-leak product and add it to the coolant to fix small radiator leaks. You can find this product at any auto shop for around $10. It's effective in 80 percent of minor leaks.

  3. 3

    Patch a small radiator leak by soldering or using a high-temperature epoxy. This is another solution to fix a small leak. Other options are to have it fixed at a specialty shop or simply to replace it. If the heater core is leaking, replacement is the best choice.

  4. 4

    Fix any cracked, busted or leaking hoses by replacing them. Simply remove both clips on the hose, pull off the hose and replace it with the new one. Make sure to put the clips back on.

  5. 5

    Remove a cracked reservoir, clean it and dry it up. Apply plumber's goop, which is a type of glue, and reinstall it. If replacement is necessary, ensure that you route the hoses correctly from the radiator to the reservoir. Additionally, it's important that they are free of kinks so the coolant can flow freely.

Read more: How to Fix an Engine Coolant Leak '

Nov 06, 2010 | 1997 Buick Century

1 Answer

How do you change a 1997 Ford Contour water pump

DANGEROUS CHEMICAL NOTICE REGARDING GLYCOL BASED COOLANT: WASH DOWN THE WORK AREA COMPLETELY WITH WATER REMOVING ALL TRACES OF COOLANT. ANIMALS AND SMALL CHILDREN LIKE THE TASTE OF COOLANT AND IT IS FATAL- REPEAT- FATAL, THIS COULD BE YOUR CHILD OR PET. DISPOSE OF COOLANT PROPERLY, CHECK WITH YOUR LOCAL GARAGE OR AUTO PARTS STORE. Viewing the engine from the front of the car, there is a plastic cover between the FWD cylinder bank and the front frame. Remove the 3x screws w/ 7mm; there is the WP on the right hand side at the bottom of the belt. WITH THE ENGINE DEAD (overnight) COLD REMOVE the battery completely, 10mm wrench for clamps, deep 10mm for hold-down nuts. Place a nice size (3gal) tub under the car and loosen the coolant cap- left side, looking aft. Remove the clamps on the short rubber hose between the forward metal pipe that runs under the fwd cyl, bank and the thermostat assembly; remove the short rubber hose. Below the thermostat is an electrical connector (MTX), push down on the tab, pull back out of the way. bag it if you're paranoid or just use a good contact cleaner upon re-assembly Undo the 1 in diam. coolant hose just aft of the thermostat assembly; that's why there's a coupler there. Remove the FWD of the thermostat assembly, 2 x 8mm, remove T-stat an crushed O-ring, replace both upon re-assembly... about $12.00 On the top left side of the belt tensioner, there's a notch for a screwdriver blade. Push the tensioner back and remove the belt. Remove the tensioner assembly 1x 8mm. Remove all bolts holding the WP, (Long and short 8mm and 1/4 in flex drive is really nice) start at the thru-bolt nearest the top and lay out in sequence of removal on the plastic trim piece in front of the front windscreen (96) Look down from the top of the WP and you will see an area where you can place a large screwdriver blade and GENTLY torque off the right side of the WP. Scrape off the old gasket material on the engine side, look for debris and trouble. NOT IN THE MANUAL! Affix the new WP gasket to the WP with a THIN coating of #2 NON-hardening Permatex; do NOT use on the engine side. Align all holes on the gasket, remove excess, set by gently warming with a hair dryer. Make sure it's tacky enough that the gasket doesn't move around Replace WP, replace bolts in sequence with a final cross-pattern torquing of ONE finger's torque on the wrench. Replace tensioner. Replace new thermostat vent rivet to the top, O-ring goes on the outside of the assy. connect front of assembly 2x 8mm Clean electrical connector with spray contact cleaner that IS SAFE for plastic, DO NOT use brake-kleen. Check to make sure it's locked down. Replace WP drive belt per decal on front frame. Replace short connector hose and clamps . Re-connect 1" coolant line Replace a few quarts of coolant and check for leaks, engine off (Don't ask me why)NO LEAKS? Proceed. Replace front cover, 3x 7mm Install battery, fire up, check for leaks WASH DOWN THE WORK AREA COMPLETELY WITH WATER REMOVING ALL TRACES OF COOLANT. ANIMALS AND SMALL CHILDREN LIKE THE TASTE OF COOLANT AND IT IS FATAL- REPEAT- FATAL, THIS COULD BE YOUR CHILD OR PET. DISPOSE OF COOLANT PROPERLY, CHECK WITH YOUR LOCAL GARAGE OR AUTO PARTS STORE. Tip - MUST HAVE Tool For anyone working on a car's cooling system, you MUST check out the MUST-HAVE tool for dealing with those spring-type hose clamps!!

This tool has a pinching device on the end to securely grab the 'ears' on the hose clamp - squeeze the handle to open the clamp, and then automatically lock it open.

The next awesome feature of this tool: the clamping action is on the end of a cable - you work it down to the clamp buried down underneath, or directly next to some part of the engine - minimal clearance required

Dec 18, 2009 | 1997 Ford Contour

3 Answers

Leaks small amount of coolant, but I don't see

Check the engine oil, see if the level is going up and what the condition is. you can take the oil cap off and inspect under it. if there is a milky fluid then the antifreeze is leaking in to your engine crank case which is bad for the engine bearing. The other thing to also check is the transmission fluid. make sure that its till bright red and not over filled to make sure it's not leaking in to your transmission through the transmission cooler which is apart of the radiator too. Good luck and keep me posted. Be glad to help. 

Jul 01, 2009 | 1999 Buick Park Avenue

1 Answer

Coolent leak

If you can get acces to coolant system pressurizing kit, pressurize the system with engine cold and look for leaks. The area you are describing is a cramped on on this car and the cooling system plumbing is a bit complex. You may have to raise and support the front of you car to get underneath to get a good look at the heater hoses and crossover piping. Down under the alternator is also a small bypass hose that is difficult to check. Putting pressure on the system should point you in the right place though.

May 18, 2009 | 1993 Pontiac Sunbird

3 Answers

Isuzu rodeo leaking coolant from engine

with my experiance on these engines it's usually the upper outlet hoses running from the heads into a t then into the upper radiator hose they are pain to replace but 3 out of 3 of my v6 isuzu's have had the same problem you'll have to pull off the theromstat and the coil pack the hoses are very small and run from the end of the heads one on each into a t then into the radiator hose just under the housing

Apr 27, 2009 | Isuzu Rodeo Cars & Trucks

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