Tag Archives: Cylinder Head

A blown cylinder head can cause your car to overheat or blow cold air from the heater. Read car repair answers from expert dealership mechanics.

3.1L and 3.4L Engine Push Rod Locations

I dropped the box with the push rods. Now they are mixed. I know that they are different lengths. What is the order? Attached is a picture of the front cylinder head (2,4,6). Thanks for your time. 3400 pushrod locations 3100 pushrod locations

My 2001 Chevy Malibu 3.1L Is Overheating

I have a 2001 Chevy Malibu. Bought it new. Very low maintenance car so far. Now my heat will only work if driven down the road or RPM’s raised. Replaced thermostat. No leaks any where. Heater core not clogged. Full of coolant. Does NOT overheat. What could it be? What size engine? How have you determined the heater core is not restricted? 3.1 engine. Flushed…

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2002 Pontiac Montana Cuts Off At Higher RPM’s

2002 Pontiac Montana 3.4L OHV had oxygen sensor code but replaced it and cleared. Head gaskets were leaking as well so replaced (milled heads, pressure tested, valve job, replaced 4 bent intake valves), also replaced plugs, wires, coils and ignition module and O2 sensor, cleaned throttle body. Car cuts out at a specific RPM in relation to how warm the engine is, when cold there…

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2006 Chevrolet Trailblazer Engine Light And Misfire Codes

2006 Chevy Trailblazer with 4200 engine and 50,00 miles. why a cylinder #4 and #6 leak? ProTech: What kind of leak? Sorry 50,000 miles. the dealer said they did a leak down test.and the head has to come off for repair. $3,ooo job they say and told my wife vehicle is not worth fixing . Give me a break!! The 2005-2007 models had cylinder head…

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Hyundai Elantra Overheats and Stopped Running

Question: I have a Hyundai Elantra which stopped running. When I had it towed to the Hyundai dealer, they told me that the head gasket was blown. They indicated that the upper and lower radiator hoses had been reversed at the thermostat housing causing air to be trapped at the front of the housing and the coolant temperature sensor does not read trapped air, causing…

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Saturn Ion Timing Chain- Car Won’t Start

I replaced the timing chain on my 2005 Saturn Ion why is it still turning over really fast? ProTech: Are you sure the timing was set correctly? Yes, but It’s like it don’t have compression. Can I ask why you replaced the timing chain? Was it for that problem? The crankshaft gear broke so I bought the whole kit and replaced everything. Well sad to…

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No Oil Pressure To Rocker Arms On Chevy Monte Carlo

2003 Chevy Monte Carlo V6 3400. I replaced the cylinder heads. Everything is ok and the engine runs fine but oil doesn’t seem to travel up threw the the push rods to the rocker arms. Oil level is full, filter is new and pressure is good as checked with a gauge. Answer: Are you checking this with the Monte Carlo engine running and the valve…

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Chevy Impala Engine Overheating- Common Causes And Repair

I had this job about a week ago and thought it would make a good article. I’ve done many head gaskets over the years, and it becomes kind of a no brainer for me, but this is a common problem on the V6 engines so it deserves some recognition. The main problem on these engines when they do have a head gasket leak, is that…

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Check Engine Light Code P0300 On GM 2.2L and 2.4L

We have been seeing quite a few problems with the GM 2.2L and 2.4L engines. Mostly on model years 2005 through 2009. This engine is very common in the Chevrolet Malibu, Cobalt and HHR. As well as the Pontiac G5 and G6. This is the 4 cylinder.  The problem I am going to talk about today is a check engine light and misfire codes. Car…

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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. Oil was changed. Car started up fine with white smoke…

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Where Is The Coolant Temp Sensor Located?

Where is the Coolant temperature sensor located at on a 1999 Oldsmobile Silhouette? ProTech: It is located on the left side of the front cylinder head on the intake. ok if that is bad will it keep the cooling fans from coming on have replaced the Coolant temperature switch and all 3 relays and the still will not come on any ideas. it can cause…

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2005 Chevy Trailblazer Runs Rough at Idle With No Compression

#1 cylinder in my 2005 Trailblazer has no compression. I applied air pressure and it sounded like the exhaust for no air came out f the throttle body. There was air coming out of my # 5 cylinder with the #1 at TDC. wanted your opinion on if you think it is an exhaust valve not seating? ProTech Yes, I would think that is your…

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Oil and Coolant Mixing In Engine- Pictures

I had the pleasure recently, or displeasure rather, of getting a customer’s vehicle that was overheating and running very poorly. Once I got in and started it up, I knew it was going to be pretty messed up. The engine was knocking, misfiring, and almost immediately going into the red on the temperature gauge! I pulled it in and the first thing I did was…

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