Question about 1998 Jaguar XJ8L

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I have a coolant leak coming from under the inlet manifold on the right side. It starts intermitently and can loose about half gallon in 5-8 miles.

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  • Jaguar Master
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Have that taken care of... call your local garage and schedule an appointment.

Posted on Sep 28, 2010

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1 Answer

Loosing a lot of coolant


it has to be either leaking somewhere, or it is going through the engine-check passenger floor for heater core leak, or a hose/clamp leak near or over the exhaust. Is the system holding pressure when hot? {squeeze the upper radiator hose when hot, you should feel it as a solid hose, that is not collapsed}. If you have pressure, it is some sort of external leak if you do not see smoke coming out the exhaust.

Mar 16, 2014 | 2007 Chevrolet Uplander

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2004jaguar s-type 4.2 liter water leak in back of manifold


there are 2 hoses that run under the inlet manifold that are prone to failing. also the plastic tower at the front of the inlet manifold on top of the engine can leak from its o ring seal where it bolts to the cyl, block. have a look if you can see coolant under the inlet manifold, you may have to remove the manifold to locate the problem area. hope this helps. i am a retired jag. technician.ps. there are also coolant hoses on the throttle body that can fail.

Aug 16, 2013 | 2004 Jaguar X-Type

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I have a 96 pontiac grand am 2.4 l leaking coolant left side of vehicle corner of rear of engine under exhaust manifold can pressure test cooling looses very fast but cannot pinpoint leak


One of two places the Coolant will escape from! Check all of ur hoses . For soft or swollen ! These engines are notorious for head problems!

Oct 29, 2011 | 1999 Pontiac Grand Am GT

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Replace thermostat on 97 cavalier?


GM Cavalier/Sunfire 1995-2000 Repair Guide

Thermostat - REMOVAL & INSTALLATION

2.2L Engine
(see Figures 1, 2, 3, 4, 5 and 6)


0900c1528003cd07.jpg Fig. 1: The thermostat is located in the lower radiator hose on the 2.2L engine


0900c1528003cd08.jpg Fig. 2: Remove the two retaining bolts for on the housing


0900c1528003cd09.jpg Fig. 3: Separate the housing halves to access the thermostat


0900c1528003cd0a.jpg Fig. 4: Pull the thermostat out to remove it from the housing


0900c1528003cd0b.jpg Fig. 5: The thermostat has an O-ring which goes around the center


0900c1528003cd0c.jpg Fig. 6: Thoroughly clean the mating surfaces of the thermostat housing
When adding coolant, it is important that you use GM Goodwrench DEX-COOL® (orange colored, silicate free) coolant meeting GM specifications. On these vehicles, if silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner; at 30,000 miles or 24 months.
  1. Disconnect the negative battery cable.
  2. Properly drain and recover the coolant until the level is below the thermostat.
  3. Unfasten the coolant outlet-to-inlet manifold attaching bolt and nut, then remove the outlet.
  4. Remove the thermostat. Clean the inlet manifold and outlet mating surfaces.

To install:
  1. Install a new O-ring onto the thermostat
  2. Place the thermostat in the inlet manifold.
  3. Attach the coolant outlet to the inlet manifold, using the bolt and nut. Tighten to 89 inch lbs. (10 Nm).
  4. Refill the engine cooling system.
  5. Connect the negative battery cable, then start the engine and check for coolant leaks.

Hope this helped (remember comment and rated this).

Apr 05, 2010 | 1997 Chevrolet Cavalier

2 Answers

Coolant leak at intake 1994 Buick LeSabre 3.8 ltr


There are several areas of possible leakage. One is the hose and plastic outlet from the intake manifold on the passenger side of the engine. The hose runs low, underneath the alternator. The plastic outlet cracks, the hose gets old, the clamps on the hose can also be loose. The replacement outlet from the dealer is steel, not plastic.
Another possibility for leakage is on the driver's side of the intake manifold. Underneath the air inlet is a metal cover on the end of the intake manifold. This covers the coolant passages at the end of the intake. Mine was oozing antifreeze..you don't have to pull the intake to replace this.
The other place for leaks is the intake itself..requiring removal of the intake. I've done this...I don't think it is that bad of a job. However, if you put in a new intake, don't forget to put in a pcv valve..it fits under a small cover at the right rear of the intake manifold.

Nov 21, 2009 | 1994 Buick LeSabre

1 Answer

Idles to a stop, 5 speed 1991 chevy, 300755, miles-same motor/clu


Not sure I have solution to your problem, but
1) Try checking for vacuum /air leaks on the inlet manifold and air intake system.
2) Check all manifold nuts / air hose clamps are not loose.

Jun 17, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Coolant leaking on manifold, steaming.No hose or radiator leak.


i think its going to be the head gasket duto the way its leaking coolant. one of the water jackets maybe i would have it checked to be sure but it sounds like head gasket

Feb 03, 2009 | 1991 Toyota 4Runner

1 Answer

Leaking coolant


Sound like a leaking hose to me or a leaking water pump, for me to help I need to know exactly what's leaking. Check it out and let me know. Good luck nd thanks for using FIX YA

Feb 03, 2009 | 1996 Ford Taurus

2 Answers

''Low coolant'' warning daily


The best thing for you to do is to take it to a shop and have it pressure tested, before you blow a head gasket.

Nov 19, 2008 | 1999 Chevrolet Monte Carlo

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