Question about 2005 Jeep Cherokee Limited

1 Answer

What parts do i need to replace on blown headgasket

#do i have to change the head bolts?

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  • 14 more comments 
  • samy
    samy May 13, 2014

    thanks again for your reply back is that mean mechanic can reuse the old bolts providing they come un damaged ? ??

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    _-__-___-_ May 13, 2014

    Sorry, teaching engine mech, here is not something that is easy.....hear X. the mech, takes the engine apart, and that is careful process. and examines each part carefully and uses tools to measure the parts, to acertain CONDITION. this is not something to guess it, it's hands on. Some pro mechs/shops, will not resuse bolts for GOOD cause, that cause in the trade, is called "COME-BACKS" imagine, working 10 hours hard labor and re-using old head bolts, then car comes back, and you get to do (EAT) all the hard labor for free. IMAGINE that. that is why some professionals refuse to do reuse them. (that warranty is why) The warranty means it must last say 30 days, and it will not with bad bolts. Head bolts are under huge stresses, each time you start engine, they Stretch easy thermal cycle and , this after time , causes, the metal to break down, try googling on head bolts and lean the rops. ill post some..

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    _-__-___-_ May 13, 2014

    http://aftermarket.federalmogul.com/en-U...

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    _-__-___-_ May 13, 2014

    economics 101?keep in mind, , the mech can spend an hour inspecting old bolts. very carfully, and at $100/hr US labor costs. or more. that is a total waste of time, the New bolts are cheaper, why do that? many are dont. for good cause. (threads checked for ANY distortions, and bolt lenghts (ALL) checked for variance, are all a reason to buy new bolts and takes hard work to discover, or miss. BTW: one of the top reasons for the new gasket to fail is this bolt failure or not finding the (measure) the head warpage or deck warpage or ingnoring it. Or using cheap china knock off parts, use FELPRO.

  • samy
    samy May 15, 2014

    thanks fossil you been an eye opener

  • samy
    samy May 15, 2014

    sadly in the UK for some weried reason dealers dont stock head bolts and i have to place an order and wait till arrive after 7 to 10 days/ also the silly money they ask for it its really unjustefied they asking 139 English pounds for 16 Head bolts am sure the dont cost that much do they?

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    _-__-___-_ May 15, 2014

    ouch, even more sad is that engine is in millions of cars. $233USD , is a rip off price, here we would get them at napa auto store or rockauto for $25 to $50 uSD or 30 pounds. Id buy the Felpro, see the heart icon?

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    _-__-___-_ May 15, 2014

    http://www.rockauto.com/catalog/raframec...

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    _-__-___-_ May 15, 2014

    http://www.napaonline.com/Catalog/Catalo...

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    _-__-___-_ May 15, 2014

    Felpro, ES711291 fits jeep and dodge see catalog link next

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    _-__-___-_ May 15, 2014

    http://fme-cat.com/overlays/part-detail....

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    _-__-___-_ May 15, 2014

    Id find a local parts store that stocks or can get Felpro parts. in fact , it be best to use Felpro gaskets and the new bolts. top quality brand and company .

  • samy
    samy May 15, 2014

    thanks you been a start my friend but non of this links give full price or can show me if i order it from here how much will cost to post it to UK and how long will take?

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    _-__-___-_ May 15, 2014

    i was only showing USA links, they dont work in UK , your browser tells the site your country and will not show price, by design. I was only showing that you might buy felpro parts in UK, call or go to any UK web car store, and look for felpro. or call them and ask for that or ask for head bolts. Ive never seen a store that can not get head bolts. id not buy from USA, unless desperate, the shipping is costly and customs etc, and long ship times. delays, do you not have auto stores there. we have many here, in my town , at least 10 stores. to call. I like NAPA here. Im not sure but does not UK have huge duties on car parts? one other point, is that here, the shops that fix cars, will refuse to use customers parts. (new) because they buy them whole sale and then 500% mark up the price, so there is huge profits with labor then the parts rip off. case in point a $2.49 NGK spark plug is charged $25 in a stealership. Adds up fast here.

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    _-__-___-_ May 15, 2014

    first ask your mech, can I buy the (spares, bits, parts)?

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    _-__-___-_ May 15, 2014

    if yes, do so. go shopping. save a 100 pounds.+

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  • Jeep Master
  • 20,706 Answers

The car comes with engine options. what might yours be.?
3 engines...... offered.
head bolts.?
if TTY bolts yes.
if regular bolts , no, if still fresh and young.

reg. bolts, get stretched every heat cycle.
they do not last forever. period.
how many miles on car,?
city or highway miles. mostly?
the FSM shows the mech, hands holding those bolts and looking at them real carefully for any ABORTIONS at all.
if any look funny, all get changed.
see why?
here ill link you to the page.
no need to work blind with free FSM , about.
http://www.youtube.com/watch?v=TZrCrBx4uFY&feature=player_detailpage


one engine heads can be damaged pulling the head 4.7L
see page 4750 for that warning on removing 4 bolts first.
not reading the FSM invites huge blunders.
see page 4751 on the bolt inspections.
im guessing your engine. so do look and read the correct pages for YOUR engine.
did you check for head warpage?

Posted on May 12, 2014

  • 2 more comments 
  • samy
    samy May 12, 2014

    Hi and thanks so much for your rapid response. My car info its jeep Cherokee 3.7 liberty 2005 model Mileage 132000 MOST IMPORTANTLY you might need to know that the car engine is been modified and fitted with an LPG converter so car can run on LPG or normal petrol. For my knowledge they say LPG makes the engine hot than normal don't know how true is that???? Now it seem car keep over heating and building pressure in the hose connecting to the radiator if feels hard and full of air. And as we in England jeep isn't a commonly used carcso most mechanicas don't have great knowledge of it. Some mechanic told me I need a new head gasket only other said I need new head gasket and new head bolts. So please please help I don't know which is true ? Specially head bokts quit expensive for some reason and take 5 working days to order. Thanks very kindly for all your help. Also if I may call you perhaps you can get a better picture on this case??? Samy

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    _-__-___-_ May 13, 2014

    uk 3.7L jeep, ok , many mechanics, warantty their work so changing the head bolts, makes that work better. see? the mech, uses 3 tools besides, , the besides the obvious. compression failure. oil in the water, and water in the engine oil, and the green/blue dye test and the rad compression tool, leak down test to prove bad head gasket. and if yoiu overheated, it the head can warp. (1 more test , takes 1min with head off,) I think the head bolts are ok, but onl based on such low mileage.and if the head gasket does leak, the mech must take it down, and see if other things are wrong. or a cracked head. or burning valves. etc.. fixing engines can not be done with xray vision,its a hand on, eyes on act, and measuring tools and head pressure checked. why not let them do the job,

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    _-__-___-_ May 13, 2014

    the lpg has less btu, so is not hotter and is tuned anywhy for LPG so is not an issue, All fuels have their own Stoich AFR, spec. and the engine is tuned to that. The bolts are checked, no matter what you want, the mech is not going to use bad bolts. he'd be nuts to do that (lol), but the warranty is sticky wicket there..

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    _-__-___-_ May 13, 2014

    i look on alldata.com and it said , not TTY bolts.

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