Are the cats why I have no engine power?

[lvcjt702]

Y'all know how much a 2003 EB Expy is worth with 7/8 pistons?

I'll give you $600 for it.[emoji6]

Do the marvels treatment on it and drive it till it dies. A used engine will only cost between $600-$1000. Pinch your pennies between here and there and you'll be fine. A good shade tree will swap it out for around $500. Its not insurmountable.

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[Prince_Polaris]

Actually normal compression should be around 140-150 psi for all eight cylinders in your SUV. Sorry to hear your problem is so severe. Bummer buddy. Now you see what I was talking about in my earlier post about cats. Are you having any top end noise? Most common problems are a worn rocker, or stuck lifter. Either way, you or the shop would have to determine if your compression loss is a valve or bad rings. Here's a Hail Mary pass you can try. Pour about 16 oz of Marvel mystery oil in your oil. If you have sticky rings, or something stuck in the top end, it might bust it loose. Again it's very doubtful it will work, but what have you got to lose. You don't have cam phasers or solenoids to worry about, so you'll only be out about $7.00 or so. I had a nagging feeling a year back when you were thinking about this vehicle, that car lot wasn't being honest. Especially at the premium price you paid, but theirs nasty people in this world, and you found one of them!

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I've met two of them... I paid 4k for an explorer with timing chain problems and I've paid 6k for an expedition, to replace the explorer, and now I learn it has a V7, I just can't win

I'll try to remember the Marvel thing, and mention it to the others! Now, with top end noise, would the clicking sounds my engine makes perhaps qualify? Other than that I don't know... hah, I was all worried about "I sure hope the guy who cleans out the cats knows how to prevent the check engine light" and here I am looking at the feat of having to replace the engine itself! Oh boy...

I agree on the Marvel however 16oz is not going to do much. He needs to replace 2 quarts of oil with Marvel, and yes I have had good luck with the stuff in both crank case oil and in the fuel.

Oh dear, which is it? Should I just be getting an oil change and ask them to make sure two quarts of it is marvel?


(And in the worst case scenario, what do you guys think I'd be able to trade this thing in on, since my pathetic savings are likely going to go **** because of the mechanic it's at right now? I really hope we can pull a miracle out of our collective hats though, I do love this thing, even if it's been crippled the whole time I've owned it)

 

[Prince_Polaris]

I'll give you $600 for it.[emoji6]

Do the marvels treatment on it and drive it till it dies. A used engine will only cost between $600-$1000. Pinch your pennies between here and there and you'll be fine. A good shade tree will swap it out for around $500. Its not insurmountable.

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Man, that's how much my 98 explorer with a detached exhaust (that conviently hid the timing chain trying to tear itself apart) was worth while trading it in on this thing lol


I suppose it would be okay to drive until I can afford a new engine, wouldn't it? Worst case scenario, the engine blows up, and I have to- gasp- replace it like I'd been saving up to. Though, I'd be running the risk of something bad happening at a bad time for it to happen...

 

[JExpedition07]

Unfortunately when you drive it with a spark related misfire like that the fuel doesn’t get burnt and it washes the cylinder. Therefore you lose compression and the engine is toast.

I’m betting it’s not a valve but that the rings are no longer sealing since you say it had a misfire on that cylinder due to the coil not being clipped in properly.

 

[Prince_Polaris]

Unfortunately when you drive it with a spark related misfire like that the fuel doesn’t get burnt and it washes the cylinder. Therefore you lose compression and the engine is toast.

I’m betting it’s not a valve but that the rings are no longer sealing since you say it had a misfire on that cylinder due to the coil not being clipped in properly.

Is cylinder 1 the closest one to the front of the car on the passenger side? If so, then... yeah. We broke it. I've got it listed on facebook, and a mechanic that my grandma really trusts is seeing about a nice fancy 2006 Yukon XL Denali, so... well, if God decides to let it work out, then that'll be the one I get I suppose.

 

[TobyU]

So! Turns out a good bit of my power loss has to do with Cylinder 1 having 50psi of compression instead of 100psi. Anyone got a 2003 5.4L Triton V8 for about $600?


I might as well never buy a car again, I overpaid on a 98 explorer that proceeded to have way-too-expensive-to-fix timing chain problems after a year, and now my expedition, after one year, the fancy vehicle that was supposed to be good, needs a whole new engine that I can certainly afford with the $600 I have saved, right?


What next, I buy a car and it just explodes after 1 year of owning it?

I have a complete 2000 Expedition with 5.4 4x4 you can have for 800 cash.
250K but runs great. It should have intake manifold gaskets put on it if its ever out of truck. In cold weather it gets a vacuum leak and surges some and pops a code.

Rust on rockers but still lots of life left in it and can drive it anywhere.

 

[1955moose]

He's in the Northeast, your in the Midwest. How you 2 going to hook up? I think our friend is tired of Ford's. Can you blame him, with 2 flameouts!

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[TobyU]

I thought I saw he was in Maryland or so. That's only 15 hr or so Maybe less.

 

[1955moose]

I would have thought more, maybe you guys can meet in the middle like truck drivers do to swap 18 wheel trailers.

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[Prince_Polaris]

I figured I should update this!

Expy is gone, I sold the poor thing for $2500 on facebook, I guess that's an all right price...



That sure ain't enough for a new car though, which would probably just last one year before dying again, so now I'm driving my grandma's 1988 conversion van, which only needed a battery to start right up after sitting for a few years. (It's at the mechanic now for maintinence though it's been a while)

So I guess I won't really be posting here too much more

Not like I knew what I was doing when I asked for help, anyway...

I have a complete 2000 Expedition with 5.4 4x4 you can have for 800 cash.
250K but runs great. It should have intake manifold gaskets put on it if its ever out of truck. In cold weather it gets a vacuum leak and surges some and pops a code.

Rust on rockers but still lots of life left in it and can drive it anywhere.

I gotta admit though, that's tempting, lol, I love the van to death but even with winter tires that thing's gonna be... interesting to drive

I sold it to a ford tech, and he did tell me what the compression was on all 8 cylinders (he's sticking a new engine in it though), here they are if you're curious:

 

[1955moose]

$2500.00 for an 03 with a bad motor? You came out better than I expected. As they used to say, see you in the funny papers!

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[Prince_Polaris]

$2500.00 for an 03 with a bad motor? You came out better than I expected. As they used to say, see you in the funny papers!

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My mechanic friend (who's working on fixing up the van right now) told me to "take it and run" so I did! he was only gonna be able to give me $1700 on a trade-in for a 2006 Yukon XL Denali but I don't wanna deal with a car payment right after dad's lost his job so I'm just drivin' grandma's van

 

[Plati]

$2500 for that beast is quite a score. Good for you!!
…bad for whoever bought it ……

I once sold a decrepit Honda Accord to a Dealer for $2500. It had a long list of problems, not the least of which was a blown head gasket. I drove it around town until it stopped belching smoke THEN stopped at Dealer to "make the deal". A few days later I was driving by there and it pulled out into traffic right in front of me BELCHING SMOKE.
-->Boy did I enjoy that<--

 

[Prince_Polaris]

$2500 for that beast is quite a score. Good for you!!
…bad for whoever bought it ……

I once sold a decrepit Honda Accord to a Dealer for $2500. It had a long list of problems, not the least of which was a blown head gasket. I drove it around town until it stopped belching smoke THEN stopped at Dealer to "make the deal". A few days later I was driving by there and it pulled out into traffic right in front of me BELCHING SMOKE.
-->Boy did I enjoy that<--

How in the world did you manage to pull that over on a dealer? And, heh, yeah, I'd love to see my old explorer rattling around somewhere, if it hasn't finally died yet

 

[1955moose]

The right ratio of rebuild in a can, followed up by straight 50 weight oil, for the rod knock, lifter tick, mix thorough,
arrive at dealership with temp gauge at no more than 160 degrees, then shut it down. Rotten thing to do, but if they screwed you in the past, paybacks a real ******!

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[Prince_Polaris]

The right ratio of rebuild in a can, followed up by straight 50 weight oil, for the rod knock, lifter tick, mix thorough,
arrive at dealership with temp gauge at no more than 160 degrees, then shut it down. Rotten thing to do, but if they screwed you in the past, paybacks a real ******!

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Heh, I kind of pulled something like that when I turned in my explorer- the exhaust had broken (cheap fix) and since it was so damn loud, you couldn't hear the timing chains, which was the much much more expensive problem! I'd feel bad about it, if the car I'd traded it in for hadn't also died :/

 

[1955moose]

I only bought one car used from a dealer. 1985 mustang GT. Pretty black car. But right off the bat, had a 2 second knock on cold start, about 2 weeks after delivery, burned a quart of oil every 700 miles. Never buy a used black car. Dealer did a repaint of roof and hood from insurance payout after failed theft. Horrible scratched repainted paint. They didn't know how to color sand after paint. Used probably 600 grit, instead of 2500. Did I mention someone tried to steal it 2nd week I owned it. 8 months into owning it, got rear ended bad, totaled car. Never buy a black car on a Friday! I always buy off of private parties, and I never buy anything above 90 k if I can help it. I like a running start before plunking down duckets for parts and labor.

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[Prince_Polaris]

I only bought one car used from a dealer. 1985 mustang GT. Pretty black car. But right off the bat, had a 2 second knock on cold start, about 2 weeks after delivery, burned a quart of oil every 700 miles. Never buy a used black car. Dealer did a repaint of roof and hood from insurance payout after failed theft. Horrible scratched repainted paint. They didn't know how to color sand after paint. Used probably 600 grit, instead of 2500. Did I mention someone tried to steal it 2nd week I owned it. 8 months into owning it, got rear ended bad, totaled car. Never buy a black car on a Friday! I always buy off of private parties, and I never buy anything above 90 k if I can help it. I like a running start before plunking down duckets for parts and labor.

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I wouldn't ever buy a black car because of how hot it would get! Sure, I could fry eggs on the hood, but it would fry me too! Sure sounds like a disaster, too... what happened when it got totaled?

 

[TobyU]

There's really not that much different from black. Just tint the windows and it keeps the inside temperature down. The outside color doesn't have much to do with the inside temperature anyway. Black leather can absorb some sunlight with that window tint more than tan leather but all other will get hot if it's in the Sun.
It's also odd how even though the paint will get hotter to the touch certain colors that are darker don't fade or oxidize as badly as other colors. They have had such a problem for years with silver paint flaking and fading as black usually holds up just as well if not better. Dark Blues can be the worst and get a head haze on them or also flake off. It's more about keeping a good coat of wax on it then anything else.