Ford - Explorer :: 1999 5.0 - Change Timing Gears And Chain After How Many Miles?
Dec 18, 2014
There was a time Ford when used a nylon toothed timing chain gear on the camshaft. Over time this got brittle and started to break into pieces. The rule of thumb at our household was to change these at about 100k miles.
I think that was a "302" thing and all "5.0" engines have all metal gears? I have no reason to open up our '99 Explorer's 5.0 with 180,000 miles. But, I will change the timing chain if it should be done.
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I have a 2003 Eddie Bauer explorer with the 4.0L SOHC . I have a coolant leak from the passenger side that is not a water pump issue.
When removing the timing chain cover with the engine in the car, do I need to remove any accessories ( power steering , alternator etc. ) or their brackets?
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I brought my 2004 VW Touareg V6(83k miles) to the dealer for a recall on the ignition call and much to my surprise, was presented with a diagnosis of a $6,000 problem! The dealer told me that the computer read some codes which say that the timing chain is stretched and needs to be replaced. They said it will take 4-5 days and should be done asap so it doesn't "go out", because if it does, it's an even more expensive problem. I took the car to another VW repair shop and they asked me if I heard any noised when I start it cold (like pebbles in a bucket). I have not had any problems like that at all, so they said I shouldn't worry until I start getting symptoms. They also said there is no recommended point (like 90,000 miles) when VW recommends the change, so it really shouldn't be a common problem. I want to do the right thing, but I don't want to rush into an expensive repair if it isn't necessary.
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Replacing the timing chains and tensioners on an SOHC Explorer, only to have the tensioners fail again after only a few thousand miles? I'm a pretty experienced back yard mechanic and have rebuilt several engines over the years with great results, but this one has me stumped. The only part of the instructions I did not do was to remove the valve springs, but everything was lined up as it should have been using the special tools required to set the timing. I really like the truck, but don't know if it's worth fixing if this is just going to happen again.
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I have a 2005 Ford Explorer with a 4.0 SOHC while the engine is running the left side timing chain rattles. I replaced the timing chain and guides and tensioner, the engine has good oil pressure but the noise is still there.
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My 2003' Explorer XLT (4.0L V6) has an oil leak. I tracked it down to the passenger side, rear, bolt head on the valve cover (back by firewall). I took it to a guy who replaced the valve cover gaskets, but it is still leaking. He claimed when he had the cover off he looked for any cracks on it, but did not see any at the time.
Anyways, I was searching around and found several explorers leaking in or around the same area of the valve cover. And it turned out that there issue stemmed from bad timing chain guides, causing the valve cover to crack.
I do notice that on a cold start, I hear a rattling when I first start it up. It rattles for maybe that first 1-2 seconds when starting. Is this my timing chain rattling around? If that is the case, how much this could set a guy back on repairs?
I guess I don't know whether to just replace the valve cover, or if I should dig into it to see if the real issue is the timing chain guides/tensioner. Mileage is approximately 121,000....
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So I was installing my head spacer. When i got the head off I noticed the upper two timing chain rails were shot. The tensioner rail has wear marks from the chain and a small crack in it. Is it possible to change these upper two rails without dropping the transmission?
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I have 2004 Chrysler Sebring base model 4 cylinder with 90,000 miles. Paid off long ago. The schedule says its time to change the timing belt but no symptoms. No other issues and have kept up the maintenance. The cost is around $1000. I need the car to last 2 more years until our new car is paid off. Should I do the repair or play the odds that it won't break down?
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I purchased a 2005 Opel Corsa C 1.8l with around 70k miles. The car is in a fantastic shape, I've had it for around 6 months, having driven around 6k miles. The first maintenance I did was changing all oils and filters, and changing the accesory belt (the one that powers the alternator, that one is not dented). I was told back then at the workshop that the timing belt (not sure if that is the correct name for the belt with dents that syncs valves, etc.) was in a good shape. I don't know if the previous owner/s ever changed it. I understand that the damage done when that belt breaks could get pretty serious, with bent valves, mainly. The question is, should I change the belt now? How long do those last?
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I have an 05 5.4 f250 that had a stuck injector. I changed plugs before I realized it was injector. After that the truck had a terrible rattling noise. I ended up changing timing tensioners and guides (guide was broken). Started it up and have the same noise, like timing chain is loose.
What I think happened is gas got into oil when injector was stuck. I had key on to pull codes. Then it lost oil pressure?
Could this cause can phases to go bad? Also can I just install lockouts or do I need to replace phasers as well?
Not sure if there's anything else I should check
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I was thinking about checking out the above vehicle at my local dealer (Chevrolet). They're asking 15.9k and it has 57k miles. I need to know if it has a timing belt or a timing chain and how reliable is the engine/transmission.
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Today I either broke timing chain or it fell off on the passenger side bank of my 08 F250 V10. Put a hole in valve cover. What to expect for repairs. Is this engine Zero tolerance.. unsure if I should expect bent valves or not and just how far I may have to go with this.. best way to test. I have a bore scope camera and mechanical abilities.
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I have 05 F250 SD with 150k on it. The engine has the typical cam phaser knock, timing chain slap on start up and occasionally have a noisy lifter. As long as I use fresh 20-40 oil the engine symptoms are less and the engine runs strong. The motor also doesn't leak or burn oil and the plugs were change out about 20k ago.
The truck is still good and is prefect for my needs so to me it's seems worth fixing the needed repairs. What I would like to figure out how far should I take the motor... just have the chains, guides and phasers replaced or buy a rebuilt motor and swap it? I'm thinking just doing the phases and etc would be 1/2 the cost but may not last as long as rebuilt motor. But realistically I might only put 5-7k miles are year on it anyways.
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OK... I know next to nothing about cars. I have a '99 Chevy Lumina I just bought in February. It has been one problem after another. The water pump has been changed and I just got my car back on Monday because there was a leak on the timing chain cover. Now, the car is smoking on the passenger side. Its not a light smoke, but its not heavy yet. I noticed it on the way to work this morning. I opened the hood, it is coming from the left side (looking at it, so the passenger side) of the engine maybe kinda underneath it. I dunno what to do, but I'm ready to push that thing into a lake.
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I have a new style 2004 F150 XLT supercrew with a 4.6. Well, I just hit 300,00 miles earlier this week. The truck has performed pretty much flawlessly over the years (and still does). I've replaced front hubs, IWE's, brakes, fluids, etc, but have NEVER opened up the engine. Is it time to replace the timing chain?
First thought is ,yes, like 50,000 miles ago, but... It has some dents and dings and the rust is getting to it. There is 300,000 on the transmission also... Virtually no residual value- If it strands me on the road, it's time for a new truck.
On the other hand, it only burns a little over a quart at 3000 mile change intervals, the transmission seems strong. I just shampooed the cloth interior and detailed it. The thing looks great from the vantage point of the steering wheel.
No engine issues at all- no rattling, etc.
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My truck has had this annoying tendency to drink coolant. I believe I took care of it by replacing the thermostat gasket. Not so, it drinks about a quart every 50 miles - so quite a bit really.
Finally bit the bullet and took it to the dealer so that they could figure out where the coolant was going.
Answer I got back was - timing cover gasket, water pump, lower radiator hose.
The water pump appears to be good, its just the gasket that's bad. So my question is - how significant is the timing chain cover leak? Poking around online it appears to be reasonably common, but sounds very expensive. The dealer indicated it would be 2 days work minimum.
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OK, my truck is making all kinds of horrible noises from the timing chain area. it is a 97 f150, 4wd with a 4.6. i know i need to replace it. BUT my question is, how long can i let it go before the chain breaks and sends valves into piston? And also what is the best timing set manufacturer? or are they all pretty good?
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I have a 4.2 with 330km (206k miles). Recently I have noticed some unfamiliar sounds that I'm trying to diagnose. First off, lately when starting the truck cold, it sometimes makes a metallic screech /clank-like noise. It just lasts for a moment when the engine catches, then disappears. Doesn't happen every time but has happened at least 1/2 dozen times the last couple of weeks. Sounds like metal gears colliding. Haven't noticed any drive-ability issues.
As well, I changed the oil a couple of days ago and when I stuck my head under the truck afterwards to check for leaks, I could hear a definite rattling / clattering noise from the area near the oil filter.
Does this sound like timing chain?
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I really love this little truck. It's got 129,000 on it, but when I shut it down I can hear the chain clattering on the guides a little. Makes me wonder how much longer it will go before jumping a tooth. The truck has always been well maintained, but is there any ballpark figure when they usually let go? Is it worth it to pull the engine and put in a new chain? I'm fairly new to the Ranger.
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It is timing chains that are prematurely stretching causing this startup noise. The news is that there is updated parts out there to address this and Ford now has a TSB on this issue formally admitting to it being a common problem. I go over it all in this video. There is also a link to just how it sounds in the description of the video on youtube.
Ford F150 3.5L Ecoboost Rattle Upon Start Up- Timing Chain Stretch Issues - YouTube...
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Can you change the tensioners and guides without removing the chains or getting the cam lock tools ? Doing a in truck repair to fix a squeal sorta noise at start up without the belt on coming from passenger side valve cover that lasts for about 5 sec. oh fyi CRC new freeze off works wonders compared to jb blaster for my tear down so far!
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