1985 Isuzu I mark problems
The Isuzu Gemini is a subcompact car produced by the Japanese automaker Isuzu from 1974 until 2000. The same basic product was built and/or sold under several other names, sometimes by other General Motors brands, in various markets around the world. While the first generation was of a rear-wheel drive design, later versions were all front-wheel-drive, and the last two generations were no more than badge-engineered Honda Domani until the name was retired in 2000.
First generation (1974)
The first Gemini was the Bellett Gemini, first seen in November 1974. It was based on the third-generation Opel Kadett C on the General Motors T-car platform and came in four-door sedan and two-door coupe body styles. The chassis code was PF50, although the later 1.8-liter versions were called PF60 and the diesels PFD60.
In June 1977 the Gemini received its first, light, facelift. The bigger 1817 cc G180 series engine became available, fitted with rectangular headlights rather than the round units used on the 1600. This model offered 110 PS (81 kW), although this output dropped to 105 PS (77 kW) if an automatic transmission was fitted. In November of the same year the 1600 was updated, now with square headlights and an engine with the I·CAS oxidation catalyst ("Isuzu Clean Air System") which could manage the 1978 emissions standards. One year later the Gemini 1800's engine was also upgraded to meet the 1978 emissions standards. Power remained unchanged, and the automatic now offered the same power as cars with manual transmission. The ignition system was now of a transistor less type, and the trunk lid was now opened remotely (not added to the Gemini 1600 until the end of December). The Gemini Black and 1800 Minx were also added, the Minx with a two-tone paintjob and the Black with black paintwork and more sporty yet comfortable equipment including alloy wheels.
In June 1979, the Gemini received a new slant nose with rectangular headlights and a redesigned rear end. The changes were actually more comprehensive than that, also including a redesigned (longer) engine bay and a wider radiator opening for two new engines added in November (the twin cam G180W and the new 4FB1 diesel) which both required wider radiators for more air for cooling.
In Japan, sports models were available originally with the "ZZ" name. Later, ZZ/L (1980), ZZ/R (1981), ZZ/T, and ZZ/E models were added. These were equipped with an Isuzu G180W 8-valve DOHC 1.8-liter engine, most commonly fuel-injected, producing 130 PS (96 kW) at 6400 rpm. These models also came with a shortened remote throw manual shift lever and optional factory LSD differential. There was also a mildly sporting model of the OHC 1800, called the LS/G.
In October 1982 a version of the diesel with Bosch VE electronic fuel injection was also added; this provided 8% more power than the regular version (66 versus 61 PS) and was fitted to the LT-E and LJ-E models. For those who wanted more, a 73 PS (54 kW) turbo diesel appeared a month later. Also featuring electronic fuel injection, this model also received a standard rear anti-roll bar. Counterintuitively, the two more powerful diesels were never available with the coupé bodywork.
The Gemini was complemented in 1981 by the Giugiaro-designed coupé Isuzu Piazza, based on the Gemini's platform, which was introduced in the United States in 1983 as the Isuzu Impulse and in Australia in 1986 as the Holden Piazza. After the front-wheel-drive second generation Gemini appeared in early 1985, the old rear-wheel drive version nonetheless continued to be built. The coupé model was discontinued, and a slimmed down sedan range (including the ZZ and diesel models) continued to be available. This diminished range was produced until February 1987, when the rear-wheel drive Gemini was laid to rest after 768,537 had been built.
Social links
Common 1985 Isuzu I mark problems
The Isuzu I-Mark, produced in 1985, has garnered its share of complaints and issues from its owners. This article will delve into some of the most common problems experienced by Isuzu I-Mark 1985 owners, focusing on the blown head gasket and the poor idling issue.
Blown Head Gasket
A blown head gasket is a common issue with the Isuzu I-Mark 1985, and it is crucial to address this problem promptly to prevent further engine damage. The head gasket is responsible for sealing the engine's cylinders, preventing coolant and engine oil from mixing. When it blows, the engine can overheat, leading to reduced engine performance and potential engine failure.
The symptoms of a blown head gasket include:
- Overheating engine
- White smoke from the exhaust
- Coolant in the oil
- Milky or frothy oil
- Engine misfires or rough idling
- Coolant loss without any visible leaks
If you suspect a blown head gasket, it is advisable to consult a professional mechanic to diagnose and repair the issue. In some cases, a chemical sealer like BlueDevil Pour-N-Go Head Gasket Sealer can be used to seal the leak and restore the engine's performance. However, if the leak is too large, a complete head gasket replacement may be necessary.
Poor Idling
Another common issue with the Isuzu I-Mark 1985 is poor idling, which can manifest as a high idle, low idle, or rough idle
. This problem can be caused by a dirty or malfunctioning idle air control valve (IAC), which regulates the engine's idle speed.
To fix a poor idling issue, it is recommended to clean the throttle body and the IAC
. This process involves removing the IAC, cleaning it with a specialized cleaner, and reinstalling it. Unplugging the IAC can trigger a check engine light, so it is advisable to use a scanner or disconnect the battery to reset the code.
Common codes associated with a faulty IAC include P0401, P0505, and P0507. If the cleaning process does not resolve the issue, it may be necessary to replace the IAC or seek professional assistance to diagnose and repair the problem.
In conclusion, the Isuzu I-Mark 1985 has its fair share of common problems, with blown head gaskets and poor idling being among the most prevalent. Addressing these issues promptly and correctly can help maintain the engine's performance and longevity.
1985 Isuzu I mark car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Isuzu I mark problems, we found that the most common problems with these 2023 model year vehicles are:
- Engine and engine cooling problems
- Power train problems
The graph below shows statistics for all 1985 Isuzu I mark vehicle components and the number of complaints received.
1985 Isuzu I mark complaints
The NHTSA has received 1 complaints about various vehicle components related to the 1985 Isuzu I mark.
ENGINE AND ENGINE COOLING,POWER TRAIN PROBLEM
- Date Of Incident: 2000-03-16
- Components: ENGINE AND ENGINE COOLING,POWER TRAIN
- Summary: I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK
1985 Isuzu I mark recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 1 recalls for different components of the 1985 Isuzu I mark.
- Manufacturer: ISUZU MOTORS LIMITED
- Components: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- Summary: VEHICLE MAY EXPERIENCE PERFORATION OF THE FUEL PUMP DIAPHRAGM. EXCESSIVE ALCOHOL CONTENT IN THE FUEL PROMOTES DEGRADATION OF THE DIAPHRAGM COATING RESULTING IN RADIAL CRACKING OF THE DIAPHRAGM.
- Consequence: A PERFORATED DIAPHRAGM CAN ALLOW FUEL TO LEAK FROM THEFUEL PUMP INTO THE UNDERHOOD AREA. THIS COULD ULTIMATELY RESULT IN ANUNDERHOOD FIRE WITHOUT PRIOR WARNING. SUCH A FIRE COULD SPREAD TO THEPASSENGER COMPARTMENT.
- Remedy: A FUEL VENTALATION HOSE KIT WILL BE INSTALLED TO PREVENT FUEL FROM ESCAPING INTO THE ENGINE COMPARTMENT IF THE FUEL PUMP DIAPHRAGM LEAKS AND THEREBY REDUCE THE POSSIBILITY OF AN UNDERHOOD FIRE.
Additional sources
More sources of information about 1985 Isuzu I mark problems:
Curbside Capsule: 1985-87 Holden Gemini SL/E – Missing The I-Mark
May 15, 2019 ... Australia only switched to unleaded fuel in 1986 and a lot of cars took a huge hit in power. The carbureted Isuzu 1.5 four – the only engine ...
Common Problems with Isuzu 4HL1 Engine | Q&A on RPM Sensor ...
Apr 10, 2014 ... My 4hl1 isuzu diesel engine shuts down below 1000 rpm will not idle, took a lot of cranking to start after extensive - Answered by a ...
NEW HEAD OR GASKET ISSUE. HELP!! - Page 2 - IsuzuPup.com
Oct 25, 2013 ... 1985 Isuzu Pup 4x4 Longbed, 15" wheels, 1.9L ... Id get best one you could find especially since its a common problem ... mark in the cover and ...
COAL: 1986 Isuzu I-Mark - That's No Lie! - Curbside Classic
May 26, 2013 ... I took a test drive, liked it, couldn't find any faults except for the mysterious disappearance of the grille logo, and closed the deal. While ...
87 1.9L voltage regulator issues - IsuzuPup.com
Nov 1, 2012 ... My 87 1.9L is having some electrical problems ... CHEVROLET SPECTRUM (1985 - 1988) GEO SPECTRUM 1989. ISUZU AMIGO (1989 - 1994) ISUZU I-MARK (1981 ...
Other years of Isuzu I mark
Are you having problems with your 1985 Isuzu I mark?
Leave your review of 1985 Isuzu I mark