Jeep

Have Jeep Questions? Ask a Jeep Repair Expert for Answers

Ask an Expert,
Get an Answer ASAP!

Jeep

I have a 1987 wrangler 2.5 engine, when I start it it smokes

Customer Question
and misses, I have new...
I have a 1987 wrangler 2.5 engine, when I start it it smokes and misses, I have new plugs and wires installed, can you help?
Submitted: 1 year ago.Category: Jeep
Show More
Show Less
Ask Your Own Jeep Question
Answered in 1 minute by:
7/21/2016
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago
Mike V.
Mike V., Auto Service Technician
Category: Jeep
Satisfied Customers: 25,881
Experience: 25 years of experience, Certified Subaru Technician and Nissan factory trained.
Verified

Hi there,

Does it matter if it's been sitting for an extended period of time or not?

What color is the smoke?

Ask Your Own Jeep Question
Customer reply replied 1 year ago
It has been sitting for about 2 months but i have started it several times since and still the same problem, seems to be loading up.
Customer reply replied 1 year ago
the smoke is blue
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Ok

Blue smoke does indicate an oil issue. This could be the oil rings or the valve stem seals. On rare occasions I have seen the actual valve get a hole in it and cause some pretty massive blue smoke.

I think what I would do here is a compression test, followed by a leak down test. The compression test will tell you if there is anything MAJOR going on with the cylinders. The leak down test will check for smaller issues like a problem with the oil rings. If it's been sitting a while, the oil rings could be locked up on the pistons and not scraping the cylinders, this would allow the oil to go past the rings, burning it and fowling the plugs causing the rough running.

I would do these tests to try and make sure the inside of the engine is in good working order.

Please let me know what more I can do to assist you today. Also, please remember to rate my answer, Just Answer does not compensate me for my time and resources. Follow up questions are included in the price of your question. If you are using the free trial, or have a subscription a rating is still required.
Thank you so much!

Ask Your Own Jeep Question
Customer reply replied 1 year ago
In the past before I let it sit, the jeep would run good but if i traveled a short distance it would not start again until I let it set for a few hours.
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

This type of issue seems more like it would be a distributor or ignition coil issue then some type of ring issue. I have seen the coils get hot and stop generating spark. Then after it cools off the wiring in the coil sort of re connects and it will work again.

Ask Your Own Jeep Question
Customer reply replied 1 year ago
If I go a longer distance the jeep would start again, it is just the short distances that it would not start.
Jeep Mechanic: Mike V., Auto Service Technician replied 1 year ago

Ok

Is the question about smoking and a rough idle or about the jeep not starting after short trips?

Ask Your Own Jeep Question
Ask Mike V. Your Own Question
Mike V.
Mike V.
Mike V., Auto Service Technician
Category: Jeep
Satisfied Customers: 25,881
25,881 Satisfied Customers
Experience: 25 years of experience, Certified Subaru Technician and Nissan factory trained.

Mike V. is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor.

Lynn B.Ormond Beach, FL

I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat.

StanSayre, PA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Chris

Chris

Shop Foreman

3,406 satisfied customers

Jeep Certified Master Tech

Mark

Mark

22 Year Factory trained technician

2,591 satisfied customers

Jeep factory training........25 years in the industry.

Dave

Dave

Jeep Master Tech

1,149 satisfied customers

Chrysler Triple Master, ASE master Tech AA degree in Auto.

moparfl

moparfl

ASE Certified Technician

1,130 satisfied customers

ASE Master Tech Chrysler Dodge Jeep Master Tech

Tim Mohr

Tim Mohr

ASE MASTER TECH

1,015 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Ron Z.

Ron Z.

- Jeep Tech -

621 satisfied customers

18+yrs experience. State Inspector & Jeep Diagnostics/Repair

jeepmopar76

jeepmopar76

Jeep/Chrysler Triple Master Tech

579 satisfied customers

32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle

< Previous | Next >

Related Jeep Questions
No spark at plugs but it cranks. 2005 Jeep Liberty 6 3.7.
yes, checked codes had oil psi replaced unit removed and reinstalled crank sensor checked all fuses ans relays and fuel … read more
Michael Solis
Michael Solis
252 satisfied customers
I hook the jumper cable up backwards and smoke was coming
I hook the jumper cable up backwards and smoke was coming out from under the driver side dash and now it will not start … read more
Chris
Chris
Shop Foreman
3,406 satisfied customers
My 93 jeep grand cherokee is having fuel delivery problems.
my 93 jeep grand cherokee is having fuel delivery problems. i have replaced the fuel pump and fuel pump relay. as well as the auto shutdown relay. i can turn the key and it will crank but the fuel pum… read more
David Dill
David Dill
Master Level Chrysler Technician
High School or GED
834 satisfied customers
I need to remove the fan clutch assembly to facilitate
I need to remove the fan clutch assembly to facilitate radiator replacement. I've acquired the spanner and 36 mm wrench to accomplish this. I've read that the fan clutch nut is right hand threaded and… read more
Ron Z.
Ron Z.
- Jeep Tech -
Vocational, Technical or Trade Scho
621 satisfied customers
Jeep wont start after itsw hot let it sit 45 min and it will
jeep wont start after itsw hot let it sit 45 min and it will start and when it wont start nothing happens all lights come on just dosnt even try … read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
08 jeep wrangler 3.8. Has no power on acceleration / sets
has no power on acceleration / sets code p0300 when driving / replaced fuel pump plugs and wires unbolted exhaust changed nothing / cleaned all injectors … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
I have a 2008 jeep compass with a "no fuse" on the dash.
i have a 2008 jeep compass with a "no fuse" on the dash. I've checked the OID fuse and its good and made sure its pushed down all the way, checked and tested all the other fuses and their good. Tried … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Tail lights nd instument cluster lights are both out. Not
Tail lights nd instument cluster lights are both out. … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Instrument panel is dead. 2000 jeep grand Cherokee Laredo
yes but am in a wheel chair so I need to know what fuse it is or what … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
Passenger door locks are clicking but don't lock or unlock.
Passenger door locks are clicking but don't lock or unlock … read more
indy-tech
indy-tech
Shop owner, technician
Vocational, Technical or Trade Scho
11 satisfied customers
My 1993 four cylender jeep hase no spark. Not sure. No
my 1993 four cylender jeep hase no spark JA: What is the model of your '93 Jeep? Customer: not sure JA: Are you fixing your vehicle yourself? What have you tried so far? Customer: yes,no sprark to coi… read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,895 satisfied customers
Goes in and out of overdrie. 2000 Grand cherokkee loredo. No
tranny is full with fluid, no burnt smell, color is a nice clean red… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Only accepts small amount of fuel at a time spits it back.
only accepts small amount of fuel at a time spits it back … read more
roy
roy
Associate Degree
3 satisfied customers
The air recirculation actuator is making a noise when it
the air recirculation actuator is making a noise when it moves the door to full open or closed … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,931 satisfied customers
Heater core hose goes to back of engine.looks like it is
Heater core hose goes to back of engine.looks like it is leaking from there as fast as I pour in antifreeze it comes out of that area.to tight to reach or take an actual look.is there some place it co… read more
Mechanic01
Mechanic01
1,151 satisfied customers
Yesterday after i t ran about 10 miles it all of a sudden
Yesterday after i t ran about 10 miles it all of a sudden stopped wanting to go above 30 mph and wanted to stop running … read more
Mechanic01
Mechanic01
1,151 satisfied customers
I have a 1993 Jeep Cherokee Country. Just had the spark
I have a 1993 Jeep Cherokee Country. Just had the spark plugs and fuel filter replaced. Not sure what brand of plugs. Afterwards, my Jeep runs a little rough especially when backing up. It did not do … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
It is shuddering between 55 and 65 now check engine light
it is shuddering between 55 and 65 now check engine light come on … read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x