I ran injector cleaner through my caddy, now it runs like crap

Page 1 of 2  
89 caddy, ran ok before, but now it sputters intermittently and power is way down after running some injector cleaner in a full tank of gas. Sometimes
it's running good and others it starts to run horribly. It barely stays running at idle when running bad.
Could it be something simple like clogged fuel filter or did I screw up something big time? I can't even find the fuel filter. Anyone have a hint as to where it is?
thanks guys
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

This sounds like a vehicle without basic maintenance. Yes, a fuel filter could cause those problems and it could even ruin your expensive fuel pump, a repair worth more than the car itself.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Well it very well could be... I only recently bought it and it's old as the hills. Can anyone suggest a path to troubleshoot this? Is there a place I can disconnect the fuel into the engine to see if I get enough fuel flowing? I'm so poor right now I can't even afford a manual so I certainly can't afford an expensive dead fuel pump.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
eddy eagle Wrote:

Isn't the fuel filter on most vehicles located between the engine and the fuel pump? If that is so, how could it ruin the pump if its after it?
--
twins0203
------------------------------------------------------------------------
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Well, the thinking goes that excess back pressure, caused by a plugged fuel filter, will overwork & result in the untimely death of the pump. So far, I've only seen anecdotal evidence, but it does seem to make (common) sense.
Regards, Al.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Firstly and most importantly:
The electric fuel pumps, are a vane pump configuration. With an extremely tight tolerance, which causes a high amount of heat. Similar to an air cut off tool. Back pressure is their worst enemy!
Secondly: Putting injector cleaner in the tank, only succeeds to loosen up all the shit, rust and water saturated dirt at the bottom of the tank. Much of which is smaller than one micron, which the pump strainer doesn't filter to one micron. So you've just succeeded in sending an abrasive compound through the tank, which scratches the bakelite vanes, and the polished cylinder. that alone causes a loss in pressure and volume.
thirdly: You just sent all the dormant garbage in the tank through, the pump, and into the fuel filter. Scratching the internal workings of the pump, clogging the strainer and starving the pump for fuel and causing it to run hotter. Also, you've forced this pudding of "SHIT" into the fuel filter, that can only filter to one micron at best, and farther down the line and into the injectors!
Refinish King
PS Do you still think that snakeoil on the store shelves works?

http://www.sseriesowners.com/forum/member.php?userid=2
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
What you say makes sense RK. Seems that the injector cleaner is also the bottom of the tank sludge detacher. Anyway, I have read that modern formulas sold in most (all?) parts of the U.S. already contain a bit of injecotr cleaning detergents etc. Therefore, a bottle of injector cleaner isn't likely to help anyway. Thoughts?
On Sun, 25 Jul 2004 21:55:20 -0400, "Refinish King"

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 26 Jul 2004 05:55:56 GMT, snipped-for-privacy@ihatespam.net (SgtSilicon) wrote:

I used to use a gasoline that claimed to have cleaners in it.
I ended up going to the dealer to get the injectors cleaned, as they were all clogged (5 were down 1 psi, the other was down 4 psi).
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Please read my reply to Sgt. Silicon?
Refinish King
(SgtSilicon)

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 26 Jul 2004 20:08:13 -0400, "Refinish King"

That's fine, except when I had my car in, it was a year old and already had 2 fuel pumps replaced in less than 20,000 kms.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
There are such things as defective pumps:
Look at the Ford Focus, there is a major recall going on now, for fuel pump replacements. They go bad by 15,000 moles. So they are trying to get the cars in and do the job as a preventative measure. Rather than pay for a break down claim.
At 20,000 miles, or even 2 years, I doubt you'd have a large accumulation of sludge in the tank anyway. I think a good idea would be run that injector cleaner in the car, every other tank full from new, to avoid any sludge build up in the tank.
It will just go into the filter, and gas filters should be replaced every 15,000 miles with today's gasoline's.
Refinish King
wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
So far:
The only things I've found that work, and don't loosen the stool in the tank are:
1: BG 44K $$19.00 a can 2: Penray Injector cleaner and fuel treatment $17.00 a bottle 3: Chevron Techron $4.95 a bottle, and just more of an already good additive package.
The others contain alcohol, which loosens the water based sludge in the tank.
I hope this helps?
Refinish King
PS The best way to clean an injector, is to run an injector cleaning cycle or two, with an injector cleaning kit. Anywhere from $59.95 for shit, plus chemicals, to $1295.00 for top of the line, plus chemicals.

http://www.sseriesowners.com/forum/showthread.php?tB31
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Thanks RK. I hit K for keep on this post too. :)
On Mon, 26 Jul 2004 20:06:36 -0400, "Refinish King"

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

tank
Our old son/buddy Berry Grant? Charles
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Ummmmm....
No!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

If your '89 is like my '93, the filter will be on the left side frame rail just behind the drivers door. For email remove "_no_spam_"
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Thank's for the location, now I'll see if I can find it amongst all the junk crammed in there.
I guess I can understand what the stuff may have done wrong. Damn, why must I get screwed by trying to be proactive... This sucks.
What can be so special about a fuel pump anyway? Why couldn't I put in some cheap off the shelf generic fuel electric pump or why would any pump need to be specific to the car or expensive as you are describing? I can see the original part being specific but wouldn't any v8 capable pump work as a replacement or is this all tied into the computer or some suck thing?
Oh hell, maybe injectors are all messed up too... And of course I'd have no way to test or clean them myself and I'm guessing the $59 injector cleaning kit probably won't work worth a darn anyway correct?
If I pulled them (the injectors ) myself would any shop or store be able to clean them or test them out of the vehicle to help save my ignorant broke ass?
Not sounding good. I can't afford all this , not at the going shop rates or the parts prices you folks quoted that's for sure.
I am so bummed out. Now I have a new dead clunker to keep the astro company that it was supposed to replace is what this sounds like... Until I can find a way to either get this fixed cheap or do some of it myself or drive it off a cliff.
It's such a pretty car, for an old piece of junk. At least it will look nice as it sits dead in the driveway. Someone just shoot me.
thanks for the help though folks, bad news or good it's better than not having a clue where to start. I guess an old caddy is better left to someone that owns their own shop or just wants a lawn ornament?
excuse me while I go kick my own ass.

is way

Sometimes
hint as

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@way.com wrote:

we put a Holley electric fuel pump on my buddy's 72 Nova. When you power it up, it sounds like a friggin' blender with a full load of ice cubes. (ok, not THAT bad, but it's bloody loud.) That is one reason why GM (and others) put the pump in the tank - muffles the noise and vibration.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Plus:
At the pressure an injection pump runs, a Holley GPH110 doesn't run at half that pressure. It runs hot, and the gasoline keeps it cool.
Refinish King
wrote:

junk
must
some
need to

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Refinish King wrote:

I didn't think about the pressure stuff... just the noise from his pump is pretty obnoxious. Good thing you can't hear it over the headers. ;)
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Related Threads

    Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.