matt14 Posted July 14, 2011 Report Share Posted July 14, 2011 Ive been a tech at this dealer for almost 8 years and in the field for 10years. Ive been working on this car for the last month and I came to the conclusion that this is the worst car ever that ive worked on. Its a 2010 with about 15,000miles on it. Car came in with complaint of low coolant light. Second time in the last year with this complaint, and no leaks were found the first time and same this time, but the pressure did drop this time. Took a look and did a lot of testing. After finally adding some dye to the coolant and draining the engine oil, found traces of dye in the oil after letting the oil drain for over 5 hours. Question is, how and where is it mixing together? I pull hte cylinder head off ( this is a new desighn and i have no expierance with this engine, and this is a horrible desighn and a pain in the ass to work on! ). Took a look at the head gasket and diddnt see anything. Sent the head out to a local machine shop and at first they said that they were having problems with blocking off a coolant passage and could not pressureize it. Then they called me back a hour later and was able to figure it out and found a cracked water jacket on the intake side. This great news since we can now confirm the failed part. Ordered new head and all related parts. Recieve the head and set valve clearance and install. Once i started to lubricate the cam journals to lay cams back in, I see something that looks odd. Found a crack in the NEW HEAD!!! Cant believe it and neither can anyone else in the shop including the field tech specialist ( tech representitive from the manfacturere). Re-order new head and related parts. So i recieve the new head and inspect for cracks and see nothing. All seems good. Install the new head and finally get ready to start the car. Cranked over for a while to pump of the hydraulic lifters and start car. Car runs good, but has a loud tapping noise from the cam area. The exhaust side uses solid lifters and intake-hydraulic ( no measurement for intake side at all ). Figured that after a while the noise would go away since these lifters were left out for over a month and would just need some oil pressure to cure it. After drving for 20+miles, the noise is still there. Guess what, have to pull back out again. Took out the cams ( lots of work just to be able to remove those) and found what appears to be a collapsed lifter. After some careful examination, noticed that on the intake side there are pins on the side of the lifter. There is a groove in the lifter bore that the pin goes into. On this cylinder, for some reason there are two groove cut and the lifter is stuck at the bottom at the meething point on the two grooves. This car uses a form a variable valve timing and the outer bucket is what is collapsed/siezed. Now, another head needs to be replaced. Ordered up the new head and all related parts. Also ordered new intake cam ( slight scorring on the cam journals ) and new lifters. This was earlier this week and now found out that the camshaft is on back order for 2 weeks, which is now putting this car in our shop for 6 weeks minimum. So after what is likely to be close to 70hours in labor, and three new heads, the customers car was bought back. Ive worked on some fucked up cars before.... like a noise that after 50 hours of trying to diagnose noise was ruled a normal noise, and tracing schaffed wiring along body harnesses, and shitloads of wierd intermittent faults that occur once in a very great while... but this one just took it to another level for me. Quote 2006 GMC YukonPioneer HU SHCA ran throughout Crescendo BC3500 One 18 AA Mayhem in a 4th order ZED Levithian 6 channel Rainbow Dual 6.5 comps ran Activehttp://www.stevemeadedesigns.com/board/topic/155628-matt14s-yukon-mayhem-in-a-4th-ordernew-amps-and-bats/page-3 Link to comment Share on other sites More sharing options...
Jd1102 Posted July 14, 2011 Report Share Posted July 14, 2011 Ive been a tech at this dealer for almost 8 years and in the field for 10years. Ive been working on this car for the last month and I came to the conclusion that this is the worst car ever that ive worked on. Its a 2010 with about 15,000miles on it. Car came in with complaint of low coolant light. Second time in the last year with this complaint, and no leaks were found the first time and same this time, but the pressure did drop this time. Took a look and did a lot of testing. After finally adding some dye to the coolant and draining the engine oil, found traces of dye in the oil after letting the oil drain for over 5 hours. Question is, how and where is it mixing together? I pull hte cylinder head off ( this is a new desighn and i have no expierance with this engine, and this is a horrible desighn and a pain in the ass to work on! ). Took a look at the head gasket and diddnt see anything. Sent the head out to a local machine shop and at first they said that they were having problems with blocking off a coolant passage and could not pressureize it. Then they called me back a hour later and was able to figure it out and found a cracked water jacket on the intake side. This great news since we can now confirm the failed part. Ordered new head and all related parts. Recieve the head and set valve clearance and install. Once i started to lubricate the cam journals to lay cams back in, I see something that looks odd. Found a crack in the NEW HEAD!!! Cant believe it and neither can anyone else in the shop including the field tech specialist ( tech representitive from the manfacturere). Re-order new head and related parts. So i recieve the new head and inspect for cracks and see nothing. All seems good. Install the new head and finally get ready to start the car. Cranked over for a while to pump of the hydraulic lifters and start car. Car runs good, but has a loud tapping noise from the cam area. The exhaust side uses solid lifters and intake-hydraulic ( no measurement for intake side at all ). Figured that after a while the noise would go away since these lifters were left out for over a month and would just need some oil pressure to cure it. After drving for 20+miles, the noise is still there. Guess what, have to pull back out again. Took out the cams ( lots of work just to be able to remove those) and found what appears to be a collapsed lifter. After some careful examination, noticed that on the intake side there are pins on the side of the lifter. There is a groove in the lifter bore that the pin goes into. On this cylinder, for some reason there are two groove cut and the lifter is stuck at the bottom at the meething point on the two grooves. This car uses a form a variable valve timing and the outer bucket is what is collapsed/siezed. Now, another head needs to be replaced. Ordered up the new head and all related parts. Also ordered new intake cam ( slight scorring on the cam journals ) and new lifters. This was earlier this week and now found out that the camshaft is on back order for 2 weeks, which is now putting this car in our shop for 6 weeks minimum. So after what is likely to be close to 70hours in labor, and three new heads, the customers car was bought back. Ive worked on some fucked up cars before.... like a noise that after 50 hours of trying to diagnose noise was ruled a normal noise, and tracing schaffed wiring along body harnesses, and shitloads of wierd intermittent faults that occur once in a very great while... but this one just took it to another level for me. what kind of car? Quote Link to comment Share on other sites More sharing options...
skittlesRgood Posted July 14, 2011 Report Share Posted July 14, 2011 damn... what car? Quote If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
dwaine Posted July 14, 2011 Report Share Posted July 14, 2011 What kind of car?? lol 2010 what? Quote Link to comment Share on other sites More sharing options...
matt14 Posted July 14, 2011 Author Report Share Posted July 14, 2011 Volvo xc90. The engine is actually made by ford and is used in from what i remember the land rovers ( or range rovers, which ever ford ownes/owned ). FOMOCO stamping all over it. Quote 2006 GMC YukonPioneer HU SHCA ran throughout Crescendo BC3500 One 18 AA Mayhem in a 4th order ZED Levithian 6 channel Rainbow Dual 6.5 comps ran Activehttp://www.stevemeadedesigns.com/board/topic/155628-matt14s-yukon-mayhem-in-a-4th-ordernew-amps-and-bats/page-3 Link to comment Share on other sites More sharing options...
Kevin Posted July 14, 2011 Report Share Posted July 14, 2011 (edited) The engine is actually made by ford I'm not surprised. Edited July 14, 2011 by Kevin Quote Link to comment Share on other sites More sharing options...
BassJunkie Posted July 14, 2011 Report Share Posted July 14, 2011 Damn man, thats some crazy shit! Quote 1986 C20 Suburban 9 American Bass XFL 15's B2 M1MKII 14v XS Power Batteries Maxwell Caps Acoustical energy is free. Electrical energy is not you havent lived until you've hit a screw with a router. Link to comment Share on other sites More sharing options...
Bumpindemlowzz Posted July 14, 2011 Report Share Posted July 14, 2011 The engine is actually made by ford I'm not surprised. Then this problem doesnt surprise me either! Quote 2010 Silverado 18" DC XL 18 DC 2k XS Power Batts Link to comment Share on other sites More sharing options...
tc300 Posted July 14, 2011 Report Share Posted July 14, 2011 Ford... Fix Or Repair Daily :-) Quote Link to comment Share on other sites More sharing options...
Jd1102 Posted July 14, 2011 Report Share Posted July 14, 2011 people say these things about fords and it may be true but i have a buddy with a 98 f 150 and that things never has problems its like bullet proof or something Quote Link to comment Share on other sites More sharing options...
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