New here so please bare with me:shiver:
I have an 89 Cherokee 2Dr limited. 285,000 miles on it. With automatic trans, A/C, ABS, IE: all the bells and whistles.
I've had my share of issues, and have worked through them somehow. I, due to lack of use & funds, illiminated the A/C, & cruise control. Rebuilt the trans about 130K ago. Mostly it's been a great rig and don't plan to ever part with it!!!
Recently, at the most inopportune time and place the CPS died. Crawled out on a hook. Dealer was my closest shop
and needed to get back to work next day.
So... CPS & ignition module replaced. When I picked it up & drove off it sputtered at idle, at acceleration, & at cruising and had no power. Tail pipe had the chug chug. Shop said ???
"You might have a fouled plug"
Possible... Long overdue. So I changed rotor, cap, plugs, wires, EGR, O2, because.... Long overdue. I did a mediocre clean of throttle body & IAC tip. Threw some sea foam in the tank and preyed the jeep preyer.
Rough and sluggish, cutting out on initial acceleration, pissing me off. Next day... Problem gone. Went to store later and problem back!!!! It has done this RANDOMLY for 4 days now.
Checked fuel pressure, normal readings, except at times, with regulator involved and not the gauge needle would radically fluctuate 3 psi either way up and down. The same with the manifold vacuum gauge needle.
By the way I only have about 14 in. of vacuum at idle. It slowly crawls up to about 18 then drops again. The revving exhaust restriction test seemed fine, but have already ordered a new magnaflow CAT to help keep the world spinning longer and make sure to have good exhaust pressure.
I've searched many threads & sites. Found some stuff, yet never a finished outcome on what problem was and what fixed it. I'm in this to the end.
Before I start going through all the checks on the cruisers list and treating my rig as well as its treated me, I was hoping for some wisdom. A baseline to start from as it were.
The vacuum needs, I suppose, to be addresses before I even get to sensors test. I'm finding it difficult to get clear knowledge on what it actually (the vacuum) should be. Each time I search I get threads on fuel pressure.
I would appreciate any wisdom.
This is long winded because I'm home and not out there this weekend.
I have an 89 Cherokee 2Dr limited. 285,000 miles on it. With automatic trans, A/C, ABS, IE: all the bells and whistles.
I've had my share of issues, and have worked through them somehow. I, due to lack of use & funds, illiminated the A/C, & cruise control. Rebuilt the trans about 130K ago. Mostly it's been a great rig and don't plan to ever part with it!!!
Recently, at the most inopportune time and place the CPS died. Crawled out on a hook. Dealer was my closest shop
and needed to get back to work next day. So... CPS & ignition module replaced. When I picked it up & drove off it sputtered at idle, at acceleration, & at cruising and had no power. Tail pipe had the chug chug. Shop said ???
"You might have a fouled plug"
Possible... Long overdue. So I changed rotor, cap, plugs, wires, EGR, O2, because.... Long overdue. I did a mediocre clean of throttle body & IAC tip. Threw some sea foam in the tank and preyed the jeep preyer.
Rough and sluggish, cutting out on initial acceleration, pissing me off. Next day... Problem gone. Went to store later and problem back!!!! It has done this RANDOMLY for 4 days now.
Checked fuel pressure, normal readings, except at times, with regulator involved and not the gauge needle would radically fluctuate 3 psi either way up and down. The same with the manifold vacuum gauge needle.
By the way I only have about 14 in. of vacuum at idle. It slowly crawls up to about 18 then drops again. The revving exhaust restriction test seemed fine, but have already ordered a new magnaflow CAT to help keep the world spinning longer and make sure to have good exhaust pressure.
I've searched many threads & sites. Found some stuff, yet never a finished outcome on what problem was and what fixed it. I'm in this to the end.
Before I start going through all the checks on the cruisers list and treating my rig as well as its treated me, I was hoping for some wisdom. A baseline to start from as it were.
The vacuum needs, I suppose, to be addresses before I even get to sensors test. I'm finding it difficult to get clear knowledge on what it actually (the vacuum) should be. Each time I search I get threads on fuel pressure.
I would appreciate any wisdom.
This is long winded because I'm home and not out there this weekend.
