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Engine won't start

E

eing9911

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Location
Sweden, Jamtland
Hi!

First post at this forum.

I live in Sweden and yesterday I bougt a Chevrolet pick up. I know very little about it but it is a Cheyenne and locks like this one (not mine) http://forum.snowrider.se/uploads/20071201_051129_liten_cheva.JPG
It´s a C2500 or K2500 (whats the difference?) with a 6.5 td engine and it is built in 1995 and has 162000 km (a bit over 100000 miles). It is equipped with a reiforced th400 transmission without lock-up. Thats about all I know about it.

The problem is that it won't start. It seems that it doesn´t get any fuel to the injectors. The lift pump works and diesel pours out when the bleeder valve is opened. The fuels shut off valve seems to work (it clicks when the ignition is turned on/off).

The previous owner (my neighbour) had problems with it before it stopped running and according to the repair shop it was the PMD that time so he bougt a new one. Then it worked fine for a couple of hundred miles but then it could just stop. The engine did not hesitate or something like that it just stopped and after a while it started again. The PMD is tested on another vehicle and is working fine.

Unfortunatly we only have low sulfer diesel here in Sweden and from what I have read that might be the best thing to ruin the IP so I am already prepared to change the IP but I wonder if there is somthing I should test before I order a new one.

I'm thinking of buying a rebuilt unit with new PMDfrom DCP, Diesel Care and Performance, http://cgi.ebay.com/ebaymotors/6-5-...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories. I'm also considering to buy that extension harness and cooler to relocate the PMD.

Any thoughts about that?

Is it difficult to rebuild a IP?

Is there any repair manual online for these engines?

/Henrik
 
Welcome!!!

I know the LP is working but is the OPS working in controlling the LP? Try to put 12V direct source to LP and see if you can start it.

PMD, there is an awesome site sponsor here that sells PMD. His handle is Burning Oil aka Leroy and the company name is PMDCable.

Was the new PMD mounted on a heatsink when the truck started?

C2500 is a 2 wheel drive (2WD) and K2500 is 4WD. The 2500 means it is a 3/4 tons truck. The ton here is American tons and not metrics ton.
 
Hi!

The LP runns continously when the ignition is turned on. That seems strange to me. Normal (for me) is that it should stop (or change rpm) when it has built up some fuelpressure but it might be different on other cars. I have never worked with a chevy before but I can't imagine that they are all that different than most european cars. It actually seems to have a quite simple construction.

Is there any wiering diagram online that shows how it shuld be?

The previous owner relocated the PMD in front of the radiator but without a heatsink. It worked fine in the beginning but after a while it stopped and then it would run again for a couple of days and then it stopped. This fault happened more and more often untill it not would start again. He said that he has tested the PMD on an indentical vehicle and it worked fine then (this was 2008). After that it has been stored in a garage until yesterday.

For me it doesen't sound as the IP is the problem because it shuld run rough or something before it stops and according to the previous owner that wasn't the case. Is there anything else than the PMD that controls the fuel shut off solenoid? Is it common that the doesn't funcyion as intended even if they are clicking?

Great info about what C/K stands for. Thanks!!!
 
If I would guess, it is definitely PMD. PMD without heatsink last only a short time. He is lucky that it lasted more than a few minutes.

PMD consists of 2 big transistor that generates heat when operating like CPU in the computer even hotter. It is more like an amplifier in a stereo system.
 
I looked at the PMD earlier and it is obvis (for me that works with electronic devices all days) that those big transistors should be cooled when they are running or else they ard really oversized and this PMD had no cooling except air.

I'll try to borrow a PMD from someone to test if it is broken. Unfortunatly this type of cars arn't too common here because the Swedish gouvornment hates big cars/trucks that need alot of fuel so they are too expensive to own and drive. Whats the price for diesel in the US today? Here we haveto pay approximatly 2.3 USD for 1 litre of diesel.....
 
x2
JMJNet said:
If I would guess, it is definitely PMD. PMD without heatsink last only a short time. He is lucky that it lasted more than a few minutes.

PMD consists of 2 big transistor that generates heat when operating like CPU in the computer even hotter. It is more like an amplifier in a stereo system.
Click to expand...
 
http://www.thetruckstop.us/forum/showthread.php?26117-What-are-you-paying-for-fuel
eing9911 said:
I looked at the PMD earlier and it is obvis (for me that works with electronic devices all days) that those big transistors should be cooled when they are running or else they ard really oversized and this PMD had no cooling except air.

I'll try to borrow a PMD from someone to test if it is broken. Unfortunatly this type of cars arn't too common here because the Swedish gouvornment hates big cars/trucks that need alot of fuel so they are too expensive to own and drive. Whats the price for diesel in the US today? Here we haveto pay approximatly 2.3 USD for 1 litre of diesel.....
Click to expand...
 
The Chevy is alive!!!!! I switched back to the old PMD and then it started. So next step is to evaluat that old PMD a bit and most likely I have to buy a new one. (I guess it is changed for a reason).

Is there any brand of PMD's that are better than original. I saw one ad on ebay where it said bullet proof. Are those better or is it just BS?
 
NVW said:
http://www.thetruckstop.us/forum/showthread.php?26117-What-are-you-paying-for-fuel
Click to expand...

Lucky bastards;-) Thats just half price for U guys...Then I understand why you americans can drive your big trucks:) I bought this truck for half the market value just to repair it and sell it because it is to expensive to drive/own. Those who work in the forestry business can afford them (free diesel) and they also need these trucks. The rest of us Swedes doesen't afford them (including me):-(
 
The original Stanadyne PMD is actually better than the new ones.
Unfortunately, it is not available anymore.

That Flight System/Dtech or rebadged aka bullet proof PMD was good at the beginning.
Then their quality goes down.

Stanadyne release a new PMD in a grey box. The jury is still out on it but so far people have been ok with it.

The key is the location of the PMD. People have found that putting it outside the hood with a PMD can prolong the life.
It can still fail, though. So nothing is bullet proof.
 
Yesterday I drove the truck for a couple of hours with the old PMD and it seemed to work fine. However the light with an engine symbol flashed a couple of times but I haven read the codes yet. I will order a new PMD and a extension cable kit with cooler.

It seems kind of slow and dull and I have read that they are like that with the original "software". Is there any chip out there that makes it a bit quicker and also increases the MPG? I have seen on the forum that there are chips with 2 different settings (one for towing and one for performance). were can I find one of those?

What should the turbo pressure be on a healthy engine?
 
You are in sweden. Talk to a SwedeBurb, he is the inventor of GMTDScanTech and also have reflashed Chips for OBD-I trucks (94-95).
He happens to be in Sweden also. Google "Enghmotors"
 
Today it stopped serveral times. Like turning off the key. I checked the DTCs and I got 32 & 33 which indicates problems with the EGR. Is it normal when the pmd is broken or is it another fault?
 
EGR codes is usually trouble in the vacuum system. It consists of vacuum pump, vacuum lines and solenoids.

Vacuum system is also used by the turbo which explains the driveability issue but it will not cause stalling or starting.

Your symptoms is PMD symptoms which is starting and stalling.
 
Hi Stefan and all you other guys!

I have been looking at your site a couple of times and it looks good and you seem to have a good reputation when it comes to these trucks so it is wery likely that I will be in touch with you later this summer. I see that you are located near IKEA in sundsvall and I am going therelater this month to buy som stuff for my house. If you get me a really good deal on a chip then I have to visit you;) You can send me a PM on Swedish regarding this:thumbsup:

I got som great info from buddy on this forum what should be done on these engines to make the work properly and because the EGR seem to have some problems I think i will remove it and remove some restrictive material in the intake. Why the hell have GM made this idiot solution?!?!?

Stefan: Do you know if "bilprovningen" accepts that the EGR is removed? Is there any trucks sold here in Sweden with the F code intake? I would look better with that intake if it is possible to get hold of here in Sweden.

I have already ordered a new PMD with cooler because it seems like it is faulty. I also ordered a gasket kit for the intake so I am sure that it seals up properly. That can be good on a turbocharged engine. I ordered it from DCP on ebay.

My next goal is to lower the fuel consumtion on it (due to the abnormal high diesel price here in Sweden) but I need to see what the specs are on my truck (transmission etc). All I know about it is that it is delivered by a company here in Sweden called Tri-star which custom builds trucks for special purposes and mine has a trailer hitch (goose neck hitch) and the previous owner had been told that the transmission was a reinforced TH400 without lock-up function. I'm not really sure about that because when I drove it it seemed that it had lock-up. It is more likely that it is a 4L80 on it from factory (or from Tri-star) (How many gears hould it be on them? 4 + lock-up or just 4?) I guess the suspension also is beefed up because it has no comfort at all when it has no load on the bed.

Parallell with this project I am rebuilding my house, fixing my ATV, fixing some small problems on 2 of my other 5 cars and trying to be at my normal work and beeing a father for my 3 children so as always, 24 h isn't enough....:(
 
You can plug the EGR (put a plate under the EGR) if you cannot get an F intake.

You can have Stefan reflash the ECM to an F ECM.
 
The new Grey Stanadyne has been very good IMO. Only had one returned so far. They do require a more expensive cable though. $205 + $49 for the cable.
Flight systems has fixed a major problem they had, so I feel good about selling them again. Also $205 but $39 for the cable.
Heat sink for either one is $40. And the $205 includes a #9 resistor.
I ship all over the world, let me know if I can help.
 
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