Somewhat random thoughts both vehicles-all noted items with possible exception of decoupler are easy DIY 1. inspect both intercooler hoses - if the exterior is oil soaked they need replacing - $250 or so for both 2. check air filter and if possible the air box to turbo hose down at the turbo end - tends to crack down there - dealer item part cost ca. $50, new filter ca. $15 3. at least look at the color, yes I know I've said color doesn't matter, of the antifreeze in the coolant bottle on the firewall. If other than pale pink you know for sure it's not HOAT coolant and needs changing - I'd change it anyway - coolant amount ca. 1.6 gal and cost ca. $15-20 per gallon. 4. at idle from the driver's side of the front fender look down the serpentine belt - if the tensioner, way down in there, is bouncing around you need a new alternator decoupler - decoupler part only ca. $80 but need special tool to remove old one. 5. depending on ambient coolant should reach operating temp (gauge vertical or ca. 1/2 tick left of vertical) within 5 miles or less of city driving or less on the hwy unless really cold (e.g. 20s F or lower) in which case should reach operating in 10 miles or so of city driving. Don't know about sub-0 temps. New tstat - depends on option taken - inline no housing ca. $10, OEM ca. $125 6. if original Red Top battery you need a new one - Interstate Mega-tron ca. $125 good choice, Sears Platinum P-1 ca $225 excellent choice. 7. other usual stuff - brakes, tires, body (make them put it on a lift so you can look at brake pads thickness remaining and underbody rust (surface rust ok, big flaking rust not ok), parking brake (funny little drum brake inside rear disc - does it work or not, engage on at least small slope and see if it holds. 8. Check Sir Sam's NOOB guide for hints. If the vehicle lacks owners manual (on shelf in top of glove box) download copy and check function of all instrument cluster warning lights (e.g. be sure they all pass the bulb self test when the ignition is switched on - NOTE glow plug lights for only like 2seconds so look a it first) 9. Fuel filter head - if the driver's side electric plug is bright blue it's the 2n gen head, if not it's 1st gen and needs replacing (comes with new fuel filter) - ca. $125 10. test drive to operating temp, find up slope like an on ramp, hammer throttle ignore dealer/owner copilot, expect excellent acceleration with fair amount of exhaust smoke but not enough so you cannot see the vehicles behind 11. figure $450 for GDE EcoTune to fix all sorts of "soot" issues and increase mpg ca. 20% 12. unless proof offered figure an immediate oil change to like Shell Rotella T-6 with filter - cost ca. $35 full fill is ca. 6.3 qts on stock size filter vs. 7qts on oversize filter, I like latter - at same time replace drain plug with Fumoto valve with safety clip ca. $45
2006 - needs Timing Belt job cost varies from DIY just replacing belt (assumes all pulleys and water pump are solid and don't need replacing) cost ca. $75 and about 5-6 hrs if you know what you are doing (FYI add new serp belt in the process - no extra time cost ca. $35) to $600 for all DIY parts including water pump (better figure on a weekend) to ca. $1,500 parts and labor to have done. Good new tires and align ca. $800. Figure this and any other problems into negotiation.
2005: 1. sellers (dealer or private) have no incentive to tell the whole truth. All dealer used cars are "1 owner" make them prove it with hard copy of chain of title (like CarFax) or better yet get name of owner and speak with that person about service record unless dealer can provide that record. 2. may or may not have had timing belt done, if not is way past due could fail at any time. Unless WRITTEN proof of TB job provided figure on doing the job like right after purchase. 3. slow start not uncommon if sitting a while could be battery, air in fuel (see fuel head note), really cold day, etc. Check subsequent cold starts, if still slow there is an issue. 4. whine under hood - look at idlers you can see for leaking grease, see decoupler note and look for LOTS of red dust on front of decoupler (a bit is ok lots is not), see is sound is coming from engine end of driver's side intercooler hose in which case it's likely the flow control valve gear (see chat on how to disable this unneeded item)
_________________ Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs
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