Tag Archives: Intake Gaskets

Leaking intake manifold gasket questions and answers. List of common problems caused by leaking coolant. Car repair help and advice from expert mechanics.

1999 Cadillac Escalade Bucks And Hard To Start

I HAVE A 1999 Cadillac ESCALADE WITH A 5.7 VORTEC AND IT PULSES OR BUCKS AT HIGHWAY SPEEDS AND IT ALSO DOES NOT START VERY WELL EVER. It cranks too long before it will fire up. Truck has new spark plugs and plug wires. There could many causes for this problem you are having on…

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2001 GMC Safari Coolant Leak and Rough Idle

Hello. My son has a 2001 GMC Safari with a 4.3 engine. He complained of a “rough idle” along with a coolant leak. Not knowing what the rough idle might be, I suggested he bring a new set of spark plugs. I listened to the engine then looked and found a bad left side motor…

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My Pontiac Has Intake Gaskets Leaking- Is It Safe To Drive?

I took my 2001 Grand Prix 3800 V6 engine (130,000 miles) into the dealer for a bit overdue oil change. After doing the courtesy inspection, a mechanic familiar with my car fills out a form with some problems I should get fixed, the main one being that the intake is leaking coolant. I’ve been keeping…

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2002 Chevrolet Malibu Has A Very High Idle

2002 Chevy Malibu w/3.4L idles @3,000 rpm. The TPS, PCV, fuel filter, fuel pump assembly, and charcoal canister was replaced after vacuum hoses were repaired. What else could cause this problem? Well really the only thing that will do that would be a bad throttle position sensor, or a major vacuum leak. A stuck open…

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2003 Buick Lesabre Misfire and Engine Light

I have a 2003 Buick Lesabre 3.8L, I am getting a code P0300 and P0302 code from Autozone. I have changed out the spark plugs and wires and the 3 coil packs. The car is running a little rough but not dying. It is still getting the same codes? Someone suggested checking the #2 injector, so…

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3.8L Buick Burns Oil Between Changes

I have a 2004 Buick 3.8 motor I’m burning a quart and half of oil between changes. I’m not leaking any oil on ground thanks kraig. ProTech: You might want to check the PCV system. If the valve is bad, or one of the o-rings is cut, improperly installed, or missing, the engine will start…

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My 2003 Chevrolet Impala Is Over Heating

Hi my name is Jim. I got a 2003 Chevrolet Impala overheating. Already replace the thermostat but still overheating. Protech: You could have a bad cylinder head gasket or leaking intake gaskets causing your overheating problem, or it just could have a large air pocket in the cooling system from when you changed the thermostat.…

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No Heat In My 2000 Chevrolet Malibu – Blower Not Working

Hi. My heat stopped working in my 2000 Chevy Malibu. The heat was making a chortling-type sound and then stopped working. Then it came on again a couple times but seems to be done now. What do you think is wrong with it? Mechanic JK: Does the blower motor still blow air out of the…

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1995 Buick Stalled and Won’t Start After Replacing Intake Manifold

Hi ,I’m new to the world of fuel injection and sensors such as a knock sensor. I have a 1995 Buick Century with a 3.4L Pontiac engine. I used the 3.1L intake manifold system and have been driving the car for several months now without any problems till 2 nights ago, I was doing nearly…

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Oldsmobile PCV Full Of Oil After Intake Gaskets Replaced

Is a wet and oily PCV valve & housing internally a normal condition on the 3800 V6 or is there something wrong? I just replaced intake manifold gaskets along w/ new upper intake plenum (includes new PCV valve + housing), on 1997 Oldsmobile Regency 3.8, due to gasket failure & coolant in cylinders / crankcase.…

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Location of Coolant Bypass on Chevrolet Impala 3800

Were is the bypass hose on a 3800 V6. ProTech: Are you referring to the coolant bypass hose? Yes The 3800 does not really have a bypass hose. It is a small plastic 90 degree elbow. It is located in the upper intake manifold on the front of the engine. I was thinking that because…

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Chevrolet Camaro Engine Light And Lean Codes

So, today I had an older model Camaro, 2001, high mileage, and not very well maintained.  It came in with the check engine light on, and had codes stored for the fuel trim being lean. Specifically, a P0174 Fuel Trim Lean Bank 2 code. This was surprising as while watching the info on the Tech…

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