You've check the first two items that can cause that. Fuel pump is
definitely one more to check (you can check this is a simple fuel pressure
gauge connected to the test-port on the fuel rail) - should run at 49
+/-5psi at all times (50psi is average).
Also, check the intake manifold for leaks (peek inside the manifold at
Key/Off WOT) and see if there is any oil puddling. Compression check
wouldn't hurt either as well as a leak-down test on all cylinders.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Mike Styer
Sent: Saturday, February 21, 2004 3:08 AM
To: dakota-truck@dakota-truck.net
Subject: DML: Need help fixing so I can get a new Dak (kind long)
Hey everybody,
I've found a 97 Dak I might be able to pick up REALLY cheap for my
soon-to-be wife to drive. I need some help trying to figure out what might
be wrong with it as she says I have to be able to get it running properly
before I can buy it.
Its a 97 5.2 auto 4x4 Dak with 93K. Problem is it runs sluggishly. Idles
fine, but anytime you give it some gas more than 1/4 throttle at the time,
it bogs down and the exhaust changed to a flatter tone like something is
clogging the pipe. Its hard to get over 3k rpms. You can get up to
interstate speeds, but if you hit a hill, you're lucky to keep it over 45.
Some days it acts worse, some better.
Today I disconnected the exhaust at the headers to isolate the cat thinking
it was clogged, but it still ran sluggishly. Maybe it was one of the better
days, but it ran a bit better (was able to reach 5k), but the exhaust tone
was still evident even with open headers, and you could feel it was still
sluggish. I hooked everything back up, then ran home without the airhat on
thinking maybe the air intake was clogged (bad chipmunk year). Once again,
ran a little better, even keeping up in the highway, but still with an
obvious sluggishness.
Any ideas here? I'm thinking fuel pump, but I want to check fuel pressure
before putting the money in a pump. Maybe just the filter is clogged? The
#1 O2 sensor was replaced 3 months ago, and there are no other signs the cat
is clogged. Any help here is appreciated as it will get a Dak back in the
family if I can get this problem solved.
Thanks,
Mike Styer
93 Dak (sold to DML member)
96 Ram (should have kept the Dak)
97 Dak ? (here's hopin)
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This archive was generated by hypermail 2b29 : Mon Mar 01 2004 - 00:34:04 EST