| Author |
Message |
Mark R. Obtinario (Cowlitzcoach) (204.245.228.92)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 02, 2004 - 9:26 pm: | |
Hello fellow busnuts,
I am wondering if someone out there really knows anything about the 6.5L turbo engine. I have come across some who say they do and they haven't known as much as I do. Which is not very much.
The reason why I ask is our church purchased a mini-bus on a GM van-cutaway chassis with the 6.5L turbo engine. Recently, the check engine light has been coming on. When the codes have been read it says we have an injection pump problem.
In addition to the light coming on the bus has been getting more difficult to start. When it finally does start it doesn't idle smoothly. Turing on the A/C is almost enough to kill the engine. It has also stalled a few times after starting.
Yes we have changed filters. Yes we have blown out the lines to check for blockages. Yes we have checked the lines for leaks. Yes we have been purchasing fresh fuel.
According to the warranty information, the bus has had the injection pump replaced twice before we purchased the bus. The bus now has a little over 50K miles.
The bus was purchased over strenuous objections on my part, in part because I had heard the 6.5L had a history of fuel problems. Now that the church owns the bus, we have to make it work for us.
Any help or suggestions on someone to call is greatly appreciated.
Mark O. |
TWO DOGS (63.185.81.68)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 02, 2004 - 10:03 pm: | |
don't take this personal...I don't want arguements,...I think that was the engine that was made for gas & they tried to make a diesel out of it..the block is not stressed for that high of compresson,the fuel system stinks,they did a recall on these engines,all you had to do was take it in & they put you an oldsmobile gas engine in it,,,,,it just bolts right up...(an olds. GAS motor)...that's probably your best advice..find a wrecked olds.,hopefully with a carburator... |
Jose (63.190.80.141)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 02, 2004 - 10:23 pm: | |
The 6.2 & 6.5 are well known for injector pump problems, also water pump.I think You need to go with the code info.
The 6.2 & 6.5 are not the gas engine that was converted to diesel that was used in the oldsmobile auto back in the 70's for a couple of years.
But on the plus side I had a 83 Southwind with a 6.2 with 87,000 and not any problems, other than not the most powerful for a 30 ft. motorhome, pulling a toad really slowed it down on hills. |
TWO DOGS (63.185.96.192)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 02, 2004 - 11:44 pm: | |
you are correct Jose...that was the 5.7 that I was talking about,6.2 &6.5 were a little better,but still had fuel problems.. |
Slowslowpete (4.245.191.199)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 03, 2004 - 1:05 am: | |
GM covered the pump for 10yrs or 120,000. At least on a friend's 96. 20,000 per pump seems to be the norm. Crack #8 cyl. was common. According to factory its more often the driver in the pump.Peter |
Geoff (Geoff) (66.238.120.13)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 03, 2004 - 6:31 am: | |
It sounds like you are getting air in the fuel system when the bus sits. This type of problem will not necessarilly show up as a "leak" since it is letting air in the fuel lines. It could be a loose connection, or it could be a bad fuel filter base. The internal injection pump would be last on the list-- they usually work or don't work.
--Geoff
'82 RTS CA |
John Rigby (24.174.238.253)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 03, 2004 - 8:25 am: | |
Two Dogs, Nice to have you back.
Boy that other bowlingreen name or whatever it was. was just to long
John |
BrianMCI96A3 (65.40.153.206)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 03, 2004 - 9:46 am: | |
Nevada D.O.T. bought a brand new Athey street sweeper with a 6.5 turbo in it, after three years it had blown three engines, and we send it to the sale line. The 6.2 is an underpowered weakling, but otherwise a decent engine.
We have had several 6.2's and and they lasted quite a while, whereas the 6.5 was an attempt by gm to bring the power level up on the 6.2 and we have had a bunch of trouble with that engine.
As far injection pumps go, we used to have quite a bit of trouble with them in the 6.2 early on, but not QUITE as much trouble later or on the 6.5, still we see failed injector pumps often enough to know it is a problem with that engine.
Brian |
Ray (216.43.201.105)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, July 05, 2004 - 11:45 am: | |
Check out this site~http://forum.62-65-dieselpage.com/cgi-bin/ultimatebb.cgi
They should be able to help you out. |
mleibelt (66.187.36.75)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 06, 2004 - 2:03 pm: | |
FYI...
I have 2 6.5 TD that I am driving....Add a quart of Type "F" ATF to 50 gallons of fuel and the pumps will live.....One is 94 with 194k and the pump has never been off and one a 2000 with 90K and no problems....
Mark Leibelt |
bill (216.84.70.82)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 06, 2004 - 8:38 pm: | |
The electronic controlled fuel injection pump on the 6.5 is a known problem. Also check the PMD to see if it is functioning properly.
I currently own two previously underpowered 6.2s that were turbocharged. One has 315k and the other has 200k miles. They both run with the "big" boys. I also have a '93 6.5 that is factory turbo'd with a mechanical pump. More performance potential, but limited by stock GM turbo, read boost limited. |
Johnny (68.0.241.248)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, July 09, 2004 - 11:14 pm: | |
Bluntly, you are the proud owner of one of the biggest turds ever crapped on an unsuspecting public--you'd be better off with a used unicycle with a flat tire. I suggest fixing this & dumping it ASAP--you'dbe better off with a gas engine. |
Gary McFarland (Gearheadgary) (68.79.122.176)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 10, 2004 - 2:02 pm: | |
well said.
Gary |