If you buy a used aero or whale without knowing the service history, is there a way to tell whether the timing belts have been changed? At what mileage do they typically need to be changed?
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they use a timing chain... I am not aware any service interval.2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
89 Crown Victoria LX HPP -- SOLD 9/2010
88 Grand Marquis LS - The Original -- Totaled 5/2006
I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478 -
Oh, OK. I didn't know they had chains. For some reason, I thought they had belts. That's good to know. Thanks.Comment
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you just have to be concerned with the worn out chain guides.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
Originally posted by gadget73Originally posted by dmccaigComment
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Would probably be best to replace the chains, sprockets and tensioners.Comment
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GrumpMarky mentioned in my 03 readers' rides thread that if the service dep't did it there will be dots and xs on the valve covers. It's the 00-03 that has problems. I sold my 97 MGM at 220k without even thinking about the chain.
PeteOriginally posted by gadget73
2003 Grand Marquis Ultimate, the "Stealth Bomber": http://www.grandmarq.net/vb/showthre...-Grand-Marquis
1991 S-10, 'Bulldog', 2.5l 5 speed: http://www.grandmarq.net/vb/showthre...375#post698375
1985 Town Car, 'Faded Glory', gone but not forgotten. 84/87/91/97 MGMs too.Comment
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Thanks for the info.
Just curious about this: I don't have a Marauder, but I think remember hearing that the Marauder engine is somehow a bit different -- maybe it's DOHC instead of SOHC?? Did the '03 Marauder also have this problem?Comment
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The marauder is DOHC but I dont know if they shared the problem. I can tell you that my uncle has 202000 miles on his 03 grand marquis and it has never had the timing chain tensioners done and still runs like new. He said he has heard of the problem but being that he hasnt noticed anything out of the ordinary he hasnt done anything with it. This leads me to believe that its one of those things that doesnt happen to everyone. If you buy one thats not 00-03 I wouldnt worry about it at all my cousins 96 gmq had 330000 on it when he totalled it and was still running fine, my 95 only had 118000 on it when I totalled it. The 4.6 really is a very good motor though there not very easy to get into anything to work on but they last virtually forever if taken care of properly.Originally posted by TomO View PostLast edited by mercurygm88; 02-25-2012, 01:18 PM.Comment
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When the chain guides go, you usually hear a clattering flapping sort of noise up front. The early 4.6 had issues with the tensioners draining down overnight and you'd get that noise on startup.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
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