86 Jeep Cherokee next problem
#1
Guest
Posts: n/a
86 Jeep Cherokee next problem
Hi Guys, I'm back. Now that the overheating problem seems to be solved I am
off to tackle another problem with this vehicle. It has a 4-150 engine with
a throttle body injection system. There seems to be a hesitation and
sluggish pickup in the RPM when starting at a low idle. If I rev it up past
a point the engine seems to have great pickup. Just starting low or letting
the engine get below a certain RPM in before downshifting will cause the
engine to have a sluggish pickup. Staying above that RPM point and it
pickups great. Might anyone have any suggestions? Also found a black
module Velcro-ed to the underside of my dash that seems to be unconnected.
Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
Would anybody know what it is and does? Do I need it? Thanks Don Smith
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off to tackle another problem with this vehicle. It has a 4-150 engine with
a throttle body injection system. There seems to be a hesitation and
sluggish pickup in the RPM when starting at a low idle. If I rev it up past
a point the engine seems to have great pickup. Just starting low or letting
the engine get below a certain RPM in before downshifting will cause the
engine to have a sluggish pickup. Staying above that RPM point and it
pickups great. Might anyone have any suggestions? Also found a black
module Velcro-ed to the underside of my dash that seems to be unconnected.
Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
Would anybody know what it is and does? Do I need it? Thanks Don Smith
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.737 / Virus Database: 491 - Release Date: 8/11/04
#2
Guest
Posts: n/a
Re: 86 Jeep Cherokee next problem
Sounds like a leftover car alarm system.
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
#3
Guest
Posts: n/a
Re: 86 Jeep Cherokee next problem
Sounds like a leftover car alarm system.
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
#4
Guest
Posts: n/a
Re: 86 Jeep Cherokee next problem
Sounds like a leftover car alarm system.
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
#5
Guest
Posts: n/a
Re: 86 Jeep Cherokee next problem
Sounds like a leftover car alarm system.
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
Nick
> Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
#10
Guest
Posts: n/a
Re: 86 Jeep Cherokee next problem
That sluggish pickup from idle could easily be a bad throttle position
sensor {TPS). I had a mid-80's Buick V-6 that had a similar problem
that went away after changing the TPS. Looking closely, there was a
dead spot on the TPS that wouldn't let me adjust the lower limit
properly. That one also needed the MAP sensor port cleaned out as
well, but I'm not sure if your's uses a MAP sensor. Worth a look-see.
On Mon, 16 Aug 2004 22:58:30 UTC "Don Smith" <desmith@innercite.com>
wrote:
> Hi Guys, I'm back. Now that the overheating problem seems to be solved I am
> off to tackle another problem with this vehicle. It has a 4-150 engine with
> a throttle body injection system. There seems to be a hesitation and
> sluggish pickup in the RPM when starting at a low idle. If I rev it up past
> a point the engine seems to have great pickup. Just starting low or letting
> the engine get below a certain RPM in before downshifting will cause the
> engine to have a sluggish pickup. Staying above that RPM point and it
> pickups great. Might anyone have any suggestions? Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
>
>
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.737 / Virus Database: 491 - Release Date: 8/11/04
>
>
--
Will Honea
sensor {TPS). I had a mid-80's Buick V-6 that had a similar problem
that went away after changing the TPS. Looking closely, there was a
dead spot on the TPS that wouldn't let me adjust the lower limit
properly. That one also needed the MAP sensor port cleaned out as
well, but I'm not sure if your's uses a MAP sensor. Worth a look-see.
On Mon, 16 Aug 2004 22:58:30 UTC "Don Smith" <desmith@innercite.com>
wrote:
> Hi Guys, I'm back. Now that the overheating problem seems to be solved I am
> off to tackle another problem with this vehicle. It has a 4-150 engine with
> a throttle body injection system. There seems to be a hesitation and
> sluggish pickup in the RPM when starting at a low idle. If I rev it up past
> a point the engine seems to have great pickup. Just starting low or letting
> the engine get below a certain RPM in before downshifting will cause the
> engine to have a sluggish pickup. Staying above that RPM point and it
> pickups great. Might anyone have any suggestions? Also found a black
> module Velcro-ed to the underside of my dash that seems to be unconnected.
> Its about 1 1/2 by 2 1/2 and has female blade type contacts on both ends,
> Would anybody know what it is and does? Do I need it? Thanks Don Smith
>
>
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.737 / Virus Database: 491 - Release Date: 8/11/04
>
>
--
Will Honea