Comments on: Chevrolet Oil Leaks

By: Charles O. Slavens

Charles O. Slavens — Mon, 02 Jan 2012 11:02:25 +0000

I have a 2004 GMC van with 115,000 miles. Yesterday, while driving, I smelled something hot and when I looked at my gauges the oil pressure gauge was peaked at 80. I pulled over, pulled out the dip stick and it was hot and dry. I looked under the vehicle and didn’t see anything significant; ditto the engine compartment. Can you please tell me what could have happened? Thanks

By: Chris

Chris — Wed, 27 Jul 2011 01:26:29 +0000

I have a 1996 chevy c-1500 with the 5.7L Vortec V8. from the factory it was perfect. has 145000 miles on it and barely leaked any oil from the timing cover. I changed out the timing chain this weekend and put a new cover on it along with felpro oil pan gasket and now i have a more significant oil leak from the timing cover. pain in my ass

By: Brooks

Brooks — Wed, 27 Jul 2011 00:25:20 +0000

I’ve been doing some research on 4.3 oil leaks and found your website. I also have the same timing cover oil leak on my 2002 4WD S-10, that you encountered on your on the ZR2. Would you mind answering a few detailed questions about this repair? Did you have to drop the oil pan? I noticed that there is a warning stamped on the front of the pan about an alignment procedure needing followed it the pan position is disturbed. Also did the CKP sensor have to be re calibrated?

Regards,

Brooks

By: David

David — Sun, 27 Feb 2011 01:24:57 +0000

It is amazing, but I have taken a nearly identical picture of my 2002 2WD Blazer with the same 4.3 engine. Identical leak, and even identical in terms of missing silicone at the base. I am much higher in terms of mileage, and have done well until now with no leaks, but now have the exact same problem. Thank you for posting this.

By: Phil Z

Phil Z — Thu, 16 Sep 2010 15:46:30 +0000

Phil Z says: Mark and ANYONE ELSE INTERESTED;;
I have an S-10 4 x 4 Blazer, 2004 with the 4.3 liter engine. This as well as a 2002 Monte Carlo S.S w/ the 3800 liter engine WILL BE THE LAST American Cars (especially GM) that I will ever purchase. My Blazer has had to have the 4 wheel drive electronics replaced 3 times. I can’t give you exact parts descriptions but there were at least 3 different electronic items, (switches, modules and what ever else) that needed to be replaced. Of course the replacements were done by tried and error. You know, ” if this doesn’t fix it, then we’ll try this” routine.

Cost me some serious money since it was about 2,000 miles past the 36,000 mile warranty when it happened the first time. I must give GM credit for the last fix since they felt after me paying to repair the “load” they would cover the 3rd try. It has stayed operational for about 11 mos now but when I do go to 4 wheel drive it is delayed for quite a bit before engaging the 4 wheel drive. This only happens after I shift the gear selector around to reverse, drive, neutral and back and forth several times.

I’m afraid to take it back to the dealer since the last time I was in for an oil change they told me I needed wiper blades, (I had replaced them about 5 mos earlier) and that i HAD 2 SIDE MARKER BULBS OUT “which still worked” AND THAT MY TIRES WERE WORN AND WERE WEARING BADLY AND i NEEDED A ROTATION AND A RE BALANCING. CAN YOU BELIEVE IT ?? I had new tires put on less than 50 miles before they took a look at my vehicle. Some one over there at the GM DEALERSHIP is FULL OF B S. Now I have the same leak you refer to and from a mechanic friend I have told me about your issue with the oil leak and he had told me up front that the leak around the timing gear cover was the culprit.

Oh, forgot to mention, the driver side door had its bushings wore out and the hole through which they were installed to hold the door on was worn out of round and the door would flop up and down whenever it was opened. The dealer wanted $400.00 to correct it and they tried to scare me into having them repair it by saying that doors on that model Blazer with that particular problem have been know to fall off. What a piece of junk.. I had it repaired by a local body shop. They removed the door, took off the mount and welded the hole in the mount shut and then re-drilled the hole and installed a new bushing and remounted the door. Oh, I forgot, they had to replace the rubber seal around the door as well. It seems that whenever it rained, my wife or I got drenched with the leak around the door.

The Monte Carlo,, lord knows that has been a curse. I had a 100,000 mile policy which “I PAID FOR ” and within 2,000 miles after passing the 100,000 mile expiration date the car has been breaking down with problem after problem. Is there anyway that a bit of PLANNED OBSOLESCENCE goes with the GM’s ?? IN my mind, GM along with the UNITED Auto Assembly Workers are worthless. I, a ( DYED IN THE WOOL AMERICAN,,, BUY AMERICAN TYPE CONSUMER PERSON ) am now purchasing TWO Japanese Vehicles.
NUFF SAID !!!
Phil

By: LouisD

LouisD — Mon, 26 Apr 2010 17:36:16 +0000

First of all; STOP! Put down the sharp instruments while I remind you that for 22 years now, FORD MOTOR COMPANY has stood under the slogan ‘QUALITY IS JOB ONE!” During the same period of time GMC has bragged about how good MR GOODWRENCH is at fixing your broken down GMC Vehicle. No what were you thinking when you compared those two slogans at the time of your vehicle purchase decision? See, there is a reason that during the last 44 years nearly 1/2 of ALL vehicles purchased in EUROPE are actually buit by FORD and FORD Affiliates… THEY LAST! Just a reminder that American CAB companies drive FORDs on average over 400,000 miles during the three years they keep them on the road. You may think FORD’s suck and that’s why you bought a Chevy, but the fact is…FORDs last and GMC crap doesn’t. Now that GMC stands for government motors, it can only get worse. Have a nice day!

By: Bill G

Bill G — Mon, 18 Jan 2010 21:10:07 +0000

I have a 96 montecarlo with 220,000 kms on it and it leaks so much oil I’m ashamed to park it in gravel. The car runs great but engine needs a diaper. Did I mention that it is for sale.

By: Corey W

Corey W — Fri, 02 Oct 2009 01:50:15 +0000

My 2004 Monte Carlo SS Supercharged .. had a rusted oil pan. So had a new one installed. Now the fun really began. I have since had the oil pan removed and the gasket replaced 4 times and its leaking again. The car has 45,000 on it. So going to get a new oil pan installed again. If it leaks again its going down the road. I have bought GM since I started to drive. But Ford is really looking good at this point. If anyone else has this problem
please post.

By: MichaellaS

MichaellaS — Tue, 21 Jul 2009 14:42:56 +0000

tks for the effort you put in here I appreciate it!

By: Patti

Patti — Wed, 01 Jul 2009 12:25:01 +0000

I have a 2004 Monte Carlo SS, it has about 80,000 and my oil pan is corroded so bad the oil is leaking through. The dealer has denied this under the 6 yr 100,000 warranty due to it not being a body part. If I would have had a small rock hit the oil pan, all the oil would have quickly leaked out.

The service desk agreed this should be covered but sorry……… The replacement oil pan and gasket are 200 bucks, not to mention labor, having to get under the motor mounts to get the bolts, terrible design. This is why this company will not survive. I am an American car fan, next time I will buy Ford!

By: Charles

Charles — Mon, 01 Jun 2009 12:19:00 +0000

Fat Matt, I had a similiar problem recently, turned out to be a clogged cat. I kept getting codes for various misfires.

By: Ben

Ben — Sat, 30 May 2009 23:55:52 +0000

I got a 96 blazer leaking oil a little i think i’m just going to let it leak I wish i would have never bought an American vehicle especially one by GM they are going out of business for a reason.

By: Fat Matt

Fat Matt — Thu, 14 May 2009 16:58:58 +0000

i have a 1997 chevy 4.3 work truck it has 300,000 miles any way it still runs strong sometimes but sometimes it acts like its not getting enough fire and cuts out sometimes ive put a new dis. cap and rotor button what else should i do?????? any help would be appreaceted

By: Engine Expert

Engine Expert — Mon, 06 Apr 2009 20:18:30 +0000

Great topic. I have people call in telling me they’re having oil problems each and every day. I will definately be coming back to read more posts. We specialize in engine and transmission repairs and always look for new opinions and topics on engines and transmissions.

By: James Presta Automotive Auto Repair

James Presta Automotive Auto Repair — Tue, 24 Mar 2009 19:34:46 +0000

Hey nice site , oil leaks are really a pain to fix but usually its just the gasket but some vehicles are a pain to to change a gasket compared to others.